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Based on the factors above, you will need a 3/8-inch gas line for your 30000 BTU heater. However, when youre operating your propane heater at full power, you are using the maximum energy that is listed for your particular heater. If you have a lot of devices that use natural gas, you will need a more significant gas line. This vent-free heater comes with the hardware required to mount it to the wall. A 30,000 BTU heater will use about 1/3 gallon of LP per hour. All appliances that use natural gas as a fuel are rated by British Thermal Units or BTUs, a unit of energy measurement. Is this the output required ? Just be sure to vent units that require it and ensure that the carbon monoxide detectors are working. Bathroom closets are often catch-alls for anything and everything remotely related to self-care. I replaced the heating units in each apartment with Rinnai gas heaters that at that time were the most energy efficient. In general it is common to set. The cost to operate a propane wall heater is about $0.80 per hour. This can be a big benefit, particularly when using a smaller heater in a big space. Ive found a Trenton 24,000 BTU/hr, will this be adequate to heat my place. Mr. Heater 30,000 BTU Vent Free Natural Gas Heater, Mr. Heater F232000 MH9BX Buddy Propane Radiant Heater, Mr. Heater F260560 Big Maxx Natural Gas Unit Heater. Measure the size of your home in square footage. hb``a``g```f@@q1-
ITd_H2E Those looking for a more permanent solution might prefer a mounted unit, which will require a more involved installation process. We are excited to invite you to enjoy the many benefits of our Pro Solutions program: This is such an important part of making sure your fire pit has nice, tall flames! Return the heater to its brackets and slide the hose through the new hole to connect the heater and the propane tank. Before jumping into the Line Sizing Chart, here is a key for you to refer to in order to translate any abbreviations you do not know: NPS - Nominal Pipe Size. The issue is that the post is using BTU and BTUh interchangeably which they are not. What that means is that after 45 minutes or so, the flame only goes to about half. RELATED SEARCHES. 4.5 4.5 out of 5 stars (3,584) $193.04 $ 193. Dual fuel helmets technology allows the unit to be operated with liquid propane or natural gas.
ft. or 4,536 cu. He has been involved in the trades for over 15 years as both a contractor and a commercial building mechanic. Flexible Gas Line (24'' Min.) 0000011061 00000 n
You may experience unwanted noise and a blowtorch effect, Pressure too Low? 3 baseboard heaters will work as well.
This unit accepts small 1-pound bottles of propane, though an adapter hose will hook it to a standard-size propane tank. How many square feet will 30,000 BTU heat? } Even though youre familiar with the best gas garage heaters on the market, you might still have some questions about these heaters. In the cold north, 5,000 BTU will be enough to heat 80 sq ft, and in the hot south, you will be able to heat a 170 sq ft room with such a space heater. Shop Dyna-Glo 30000-BTU Wall-Mount Indoor Liquid Propane Vent-Free Radiant Heater in the Gas Space Heaters department at Lowe's.com. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. For medium-size spaces, Mr. Heaters F260550 Big Maxx Natural Gas Unit Heater can answer the call. A Therm of natural gas will keep a 30,000 Btu wall heater running for 3.3 hours. .container-menu { DC Wire Gauge Calculator: What Gauge Wire (12V, 24V, 48V)? . ----- each size. Shopping for the best garage heater requires some attention to a units capacity or output. 0000015811 00000 n
. It wont ignite in the air unless the temperature is at least 900 degrees Fahrenheit. If your home is huge, you will need a more extensive line to deliver enough natural gas to all the rooms. They mix fuel and oxygen at the flame which makes it taller, brighter, and hotter using less fuel, Read all about how much fuel you might be burning at full capacity , ANSI Z21.97/CSA 2.41 Outdoor Decorative Gas Appliances, The burner system is certified nationally, however, it is up to the customer or contractor to verify local requirements, Select Product Information from the drop down, then click Go., Model Number: Enter the burner type and BTU output (i.e. The depth at which the plate sits is really up to you. There are various pros/cons of Liquid Propane (LP) and Natural Gas (NG). You can do that with 1 or many units. Though you may have to mound the fire media up higher in order to cover the jets. For garages that arent on natural gas grids, propane heaters might be a better choice. Producing 4,000 to 9,000 BTUs, this radiant propane garage heater will warm objects in spaces up to 225 square feet, making it an attractive option for small shops and 1-car garages. This means that a 30,000 BTU heater connected to a 3/8-inch pipe that is 80 feet long would need a regulator set at 11 inches of water column (WC) to keep the gas flowing correctly. Select the next highest gas line size if you are unsure. Method for determining correct pipe sizing per 1216.1.1: (1) Compute BTU demand for all appliances Maximum gas demand of outlet A: The device used to measure pressure of this type is called aManometer, Pressure too High? air). A natural gas supply burns cleanly, and an abundant amount is available. When sizing the gas line make sure you add 5 feet per elbow to the total length. You need both pressure and volume to get a great flame. But, poorly running heaters dont burn as efficiently and can cause unsafe CO buildup. margin: 0 !important; Gas Usage and Pipe Length. As an Amazon Associate we earn from qualifying purchases. Gas Pipe Line Calculation Sizing USING CPC PIPE SIZING TABLE (PROPANE) . For everybody who is not an HVAC expert, its important to get a glimpse of how many BTUs per square foot should be used for heating. For example, in a 250 square foot apartment, a 10,000 BTU heater would be sufficient. We are hearing about 2000 sqft along with 1000 swft daylight basement on less than 800 gallons of heating oil. A propane heater is a valuable and versatile investment that can heat your house or warm your mobile home or camper. Obviously, if you live in colder climate, a 40,000 BTU heater will heat an area below 1,000 sq ft. And, since it burns at 99 percent efficiency, this natural gas heater offers an affordable way to stay comfortable. He lives in NYs Hudson Valley with his wife, their three children, and three dogs. /*padding-left: 10px;*/ This makes for a simple and sturdy plate mount, If the top of your fire table overlaps, or encroaches into your opening, and its thickness is less than 3 inches, you may want a pan instead of a plate (since the pan has to be smaller than the smallest part of the inside diameter), The sidewalls help contain the fire media/lava rock, Sometimes necessary if you plan on building a portable fire feature and arent able to stack up blocks under the plate, Bar-height or uncommon builds might benefit from a drop-in pan, You will see a brushed aluminum metal band on the top of your fire feature when you use a drop in pan, Drop-in pans are available as a custom order , We recommend 3 sidewalls with a 1.5 lip in most cases, When you order a package from us, most of the time it will come with a threaded piece welded on to the plate/pan, Its very simple to remove or attach the burner (righty-tighty, lefty-loosy make sure to re-apply pipe dope/tape! Installing a propane heater is a great way to save money on heating costs. Obviously, in the cold north, you will need more BTUs per square foot than in the warm south. I live in Georgetown CA 95634, in a granny flat 1000sf / 2 story. 0000003326 00000 n
In addition to the other appliances, you might have connected to the same line. For a rough estimate, utilize our gas line sizing charts below. Theres no provision for heating it directly, but it doesnt feel cold in the wintertime. This will reduce the height of the burner by 3/4. 0000002908 00000 n
If we want to find the cost for the month, lets multiply those eight hours by 30 days for a total of 240 hours. But lets say you would need 60 BTU per sq ft; that would be about 30,000 BTU or 6 1500W space heaters. . If the pressure at the delivery location is much higher than necessary, youll need to lengthen the pipe to allow for it. 0000059449 00000 n
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} Sizing of Low Pressure Pipes vs. Capacity - Sizing low pressure natural gas pipe lines - Metric units. Its the number one mistake I see people make when shopping fire pits. Now, assume your home has a 300-pound propane tank. This number indicates the amount of energy consumed per hour, not how much it puts out. You will need a3/8-inchgas line for your 30000 BTU heater. To help you figure out which climate zone you should input into the heating BTU calculator, you can use this map by Office of Energy Efficiency & Renewable Energy: With this information, you can use the Heating BTU Calculator to get a basic idea of how many BTUs you need to heat your home. you might want to make sure you black iron stub out has a drip leg and is secured in a way no ones going to have an issue about that. 0000065256 00000 n
This is primarily for living spaces; warehouses tend to have not-as-good insulation (lower insulation R-values), high ceilings (plenty of air to heat) and usually dont need to be heated up to 72F. I dont like it hot, I prefer to layer and my place is very well insulated. If your heater had 33,000 BTUs, you'd use approximately one gallon of propane per hour. What Size Pressure Relief Valve For Water Heater? To determine how much burn time you can get from your propane tank, use this simple formula. Bob Vila has been Americas Handyman since 1979. As long as you follow the manufacturers instructions for use and installation, gas garage heaters are safe. content: '>'; This means a 30,000 BTU heater would require a fuel line that can transport at least 30 cubic feet of natural gas per hour. Thank you for your time, A 30,000 BTU heater requires one gallon of propane for every three hours. For an attached one- or two-car garage, a 30,000-BTU unit is often more than suitable. 1 Cubic Foot (ft 3, CF) . %PDF-1.4
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BTU stands for British Thermal Unit. 30,000 BTU Blue Flame Vent Free Heater for use with natural gas Even convection heat warms indoor spaces up to 1,000 sq ft Can be wall mounted or free standing, feet and hardware included State Restriction: CA .change .bar3 { Bottom line: to comply with piping materials choices, you need to find out what local building or plumbing inspectors will accept as rules vary by jurisdiction. If not, youll need to open up a wall and run a duct between the wall joists and ceiling beams. However, ventless propane heaters are much easier to install than vented ones. To calculate how many BTU of heating output you need, you have to know only 3 factors: To use the heating BTU calculator, you will first need to measure the place you want to heat up. Over the course of his decades-long career, Bob Vila has helped millions of people build, renovate, repair, and live better each daya tradition that continues today with expert yet accessible home advice. For example, if you have four appliances and your home is 2000 square feet, you would need a 1/2-inch gas line. Get the Mr. Heater 30,000 BTU gas garage heater at Appliances Connection, Tractor Supply Co., or Northern Tool+Equipment. 0000064685 00000 n
Now that you understand the importance of volume (BTUs), lets talk pressure. The amount of gas used by your gas range is measured in cubic feet per hour (cfh). 5.0 5.0 out of 5 . border: none !important; This feature helps to prevent fires caused by a heater left unattended. (Depends On Climate Zone), What Temperature Should I Set My Thermostat In The Winter? From there, you can figure out how many hours a day, week, or month you might use the heater. A 30,000 BTU propane heater can heat a space that is up to 1,000 square feet. . 0000035842 00000 n
Windows, doors and insulation play a huge role in the final number. Dyna Glo Gas Space Heaters. 0000011931 00000 n
In addition to his professional life, Tom enjoys getting outside on his mountain bike, camping, beekeeping, and fishing. (Per Hour, Month, Year), How Much Does It Cost To Run An Electric Heater? Mr Heater 30000 BTU Vent Free Blue Flame Propane Gas Wall or Floor Indoor Heater with Thermostat for Spaces up to 750 Square Feet, (2 Pack) 4.5 (16) $59599 FREE delivery Mar 6 - 8 Only 2 left in stock - order soon. Gas piping should be sized in accordance with the tables in the Standard Gas Code or by other engineering methods approved by local Authority Having Jurisdiction. It is better to have a gas line that is too big than too small. My Father and I did it on a long weekend when we knew inspectors would be out of the city just in case. ft of living space. The nozzles or jets that supply gas to the flame on each type of heater are differently sized, and you wouldnt want to use a propane tank, for example, on a natural gas heater without a conversion kit. For starters, the primary factor you must consider when determining how much propane to use is the outside temperature. Any input would be greatly appreciated. Our mission is to help everyone find the perfect product, whether it is for home improvement or for electronic gadgets. Pay $224.48 after $25 OFF your total qualifying purchase upon opening a new card. We may earn affiliate fees for purchases using our links (at no additional cost to you). This is because the average home uses about 1000-1200 cubic feet of natural gas per day. When a small, temporary fix for a large garage or shop wont cut it, check out Mr. Heaters F260560 Big Maxx Natural Gas Unit Heater. Even infrared heat warms indoor spaces up to 1,000 sq ft. Can be wall mounted or free standing, feet and hardware included. Tankless Water Heater Breaker Size Calculator: What Size Breaker? Garage spaces are full of flammable items, combustible liquids, and other dangerous materials that can cause a fire if theyre in close proximity to a gas heater. This field is for validation purposes and should be left unchanged. The exact number depends on where you live. Love goe your map lists places in a Zone 8, most of interior Alaska, but then the calculator, nor the rest of the page, doesnt have data for zone 8, only 7. All flex lines are stainless steel and whistle free. 0000001861 00000 n
A long run (50 ft. and over) from the propane tank to a house with a total load being over 1,000,000 BTU would most likely benefit from a two stage system because an integral twin stage will not supply the propane . Keep in mind that factors such as regular servicing or humidity levels will have an effect on how long a heater lasts. Will 6-25kw Space Heaters be right? As far as we know, however, it doesnt exist. What about a sunroom with windows on 3 sides and dead air underneath (like a bridge for example)? This unit does require a kit for ventilation as well as a thermostat, both of which are separate purchases. According to the U.S. Department of Energy, the cost of electricity is twice the amount of propane. Those numbers can jump considerably if the space is poorly insulated. Its a globally recognized energy unit and the most common way to measure heat energy in the USA. Even though the standard key valve inlet is 3/4, you may need a larger gas line to span long distances. That all depends on the size of your house and how many appliances you are using at the same time. This is the normalpressurethat household naturalgasis delivered. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Prices for our products will increase about 3% starting on February 1st. As always, with Montana Fire Pits youll enjoy: Transit time not included. 0000005158 00000 n
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As the host of beloved and groundbreaking TV series, including This Old House and Bob Vilas Home Again, he popularized and became synonymous with do it yourself home improvement. Tom Scalisi is a freelance writer specializing in the home design, construction, tools, and automotive industries. 0000015398 00000 n
A 100lb propane tank would give you roughly 72 hours of burn time. Is the basement area included? left: 5px; The three main types of gas garage heaters are forced air, convection, and radiant. SG = specific gravity of natural gas. Its the maximum BTUs per hour. Natural gas is a safe and efficient way to heat your home, but its essential to understand the risks before beginning any project. Due to BTU loss through exhaust gases, heater runs at approx. Effective May 5, 2021 over 100 Warming Trends CROSSFIRE burners will be approved for use in Massachusetts. Use our free heating BTU calculator! It also has a low-oxygen sensor that shuts the unit off, and since it uses convection, its safer to install in tighter areas than a radiant heater. Question: How many BTUs do I need to heat 1500 sq ft? This is because the average home uses about 1000-1200 cubic feet of natural gas per day. Stacy Randall is a wife, mother, and freelance writer from NOLA that has always had a love for DIY projects, home organization, and making spaces beautiful. If they know a thing or two about furnace sizing and they should know a lot more than just a bit they are defending this 40k furnace knowing its quite undersized. Since carbon monoxide is colorless and odorless, these detectors are sometimes the only way to tell that there is an issue. If I use the formula and plug in kerosene cost per hour I,m spending over $2000 per month. Described in BTUs (British Thermal Units), a heaters capacity can help determine the space for which its most suitable. SEER = (1 EER100% + 42 EER75% + 45 EER50% + 12 EER25%)/100, Total Heat (BTU/hr.) The company is standing its ground and insisting that the next size up (60K) would be oversized and would be flagged by the city inspector. and some juridictions might want it sleeved. But you might be struggling to figure out what kind of paint to use on garage walls. air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. 1 Cubic Foot (CF) = approx 1000 BTUs; . Office of Consumer Affairs and Business Regulation (OCABR), Key Valve/Flex Line Kit (Fk1 or FK2 or FKM1), Push Button Battery Powered (PBIK3.0MBRK), LP Gas Flow is given in thousands of BTU/hr. This forced-air heater produces 50,000 BTUs of heat, quickly warming garages and small barns up to 1,250 square feet. 0000011208 00000 n
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So, for 9 ft ceiling, you need to multiply the BTUs by 1.125 to get the most adequate estimation. It also comes with a propane conversion kit, allowing users to swap it over to propane fuel if thats their preference. BTUs are most commonly used in the United States to rate heat-producing appliances and calculate the cost of heating fuels. Hot Water Heater Pressure Relief Valve Keeps Opening. 1 BTU is enough heat to raise the temperature of 1 pound of water by 1F. You are correct, its not a one size fits all. Portable electric heaters are lightweight and usually include carrying handles to supply heat wherever needed, while wall-mounted options are semipermanent and easy to install for continuous heat. The btu/sq ft method does not compensate for any other factors and assumes the worst in terms of energy efficiency of the home. Gas piping should be sized in accordance with the tables in the Standard Gas Code or by other engineering methods approved by local Authority Having Jurisdiction. display: none; air), Sensible Heat (BTU/hr) = 1.1 x CFM x t (std. If theyre too small, however, there will be cold spots in the garage. .bar1, .bar2, .bar3 { Get the Dyna-Glo gas garage heater at Amazon, The Home Depot, or Lowes. As you can see below there is a chart for copper tubing size and a chart for iron pipe size with the BTU ratings for the length and diameter of the line. These include the number of appliances you have, the size of your home, and the amount of natural gas you use daily. Practically, that is way more than what you actually need. A lot of homes are have rooms with undersized convection. or 1/2'' Black Pipe . Im replacing my pellet stove with a freestanding gas fireplace. Hello Thomas, thank you for a very good question. The following is a list of some of the best products on the market. Then how do I calculate which size furnace to buy if it is an 80% efficient furnace? 0000009748 00000 n
They arent. Below is a collection of some of the most commonly asked questions about gas garage heaters along with the answers to clear them up. Most metropolitan areas in Canada will require an automatic shutoff for fire pits over 65K BTUs in order to get a permit or certification. The actual BTU calculation, in accordance with Manual J, is, of course, performed on the space by an HVAC expert. Heating equipment is rated in BTUh (not BTU) as it is an output of heat over a period of time, whereas units of fuel are rated in BTU (total heat available within that unit of fuel). (7.57-37.86h), How Long Will A 20 lb Propane Tank Last At 50,000 BTU? You can set the burner directly on the plate/pan. The goal here is to get a rough estimate; a guestimate at best. Dyna-Glo BFSS30LPT-2P 30,000 BTU Liquid Propane Blue Flame Thermostatic Vent Free Wall Heater, White 4.5 (309) $25592$270.56 Direct vent heaters are more expensive and more challenging to install, but ventless heaters can irritate those particularly sensitive to odors and fumes. We will include it right away, thank you for the heads up. - Outside Diameter. All it takes is a bit of know-how and calculation. This says i need about 16,700 btu to heat that size area. The rear-mounted fan draws cold air into the unit, pushes it across a heat exchanger, and then forces it into the space for quick heating. 04 $209. One megajoule is equal to 1,000,000 joules. Using this formula, you can determine that your 300-pound propane tank will last for approximately 215 hours of burn time. All gas products approved for use can be found on theMassachusettsConsumer Affairs and Business Regulation (OCABR) website:Office of Consumer Affairs and Business Regulation (OCABR). Answer: 45,000 BTU 90,000 BTU. link to What Kind Of Paint For Garage Walls. All things considered, propane is one of the safer chemicals used for home heating. BEST OVERALL: Mr. Heater 30,000 BTU Vent Free Natural Gas Heater. These units typically install off the ground, keeping them safe and out of the way. When it comes to getting the most value from a gas garage heater, Dyna-Glos Natural Gas Vent Free Wall Heater is worth consideration. ul.menu.simpleweb_categories li:hover:before { Several safety concerns come with the convenience of a propane wall heater. As a general rule, the longer the pipe, the lower the pressure it can withstand. What about ceiling height? Agreed, these are rules of thumbIm in KCnotice that in Missoui its green, and in Kansas its Yellowso I teach my guys that the total heat required has many more factors that shoudl be consulted with by a professional engineer. Using this formula, you can create an accurate estimate of how much propane gas you need to power your wall-mounted heater. Ask a contractor or your local gas company for someone qualified to perform an energy audit. This 30,000-BTU blue-flame heater will create warm, even convection heat in spaces up to 1,000 square feet. Im confused by this. On the other hand, if your home is smaller, you might get away with a smaller line. 0000000016 00000 n
You can still purchase higher BTU burners without the premium ignition, and we will ship it with a fitting that limits the burner to 65K BTUs in the case that youd like to have it certified. I have a warehouse 7,800 sq.ft. There are two types of propane wall heaters: vented and ventless. You will need to add up the total BTUs for all the appliances and use that number to determine the proper diameter for the pipe. Determine the number of appliances you have that use natural gas. Continuing with our last example, lets say well be running the heater for eight hours a day. Its also advisable to mount a carbon monoxide detector in each room with a propane heater. Oversizing furnaces to accomodate unrealistic heating loads leads to premature failure due to air starvation and short cycling as well as poor comfort due to insufficient runtime. With propane water heaters, the recommendations may vary in regards to how much propane you should use. To determine this you must add the BTUs of all of the appliances in the system and take into consideration the type of metal the pipe is made from. .change .bar1 { Shipping in the U.S. & Canada See Lead Times. Therefore, if you continuously run your heater, youll consume 1/3 gallon of propane per hour. 0000023699 00000 n
These recommendations reflect the importance of having steady, reliable heat in cold temperatures from a trusted power source. Mr. Heater Vent Free Heaters come in radiant or blue flame indoor safe wall-mountable heaters that run off of either propane or natural gas. How Many Square Feet Will 1,000 30,000 BTU Heat? Shouldnt it be included in the calculation? 0000001701 00000 n
understand how to run proper size gas lines, to accomidate the necessary BTU, Like these videos? This calculation does not allow for what temperature you are trying to reach. The vented models carry exhaust air outside, while the ventless ones have no such ductwork. Pipe length must include an additional length for all fittings. Expert advice from Bob Vila, the most trusted name in home improvement, home remodeling, home repair, and DIY. No, in some cases a plate is not necessary, You may decide to fill up the space with some gravel or lava rock and set the burner on that instead of a plate or pan, Using a plate/pan is the most convenient for installation and maintenance, Sidewalls are not necessary when the burner is in the common position- recessed 3-5 inches below the finished top, Use stacked cinder blocks, bricks, or pavers under the plate. Because of this, its important to turn your propane heater off when its not needed. 0000015626 00000 n
Also, low oxygen shutoffs will detect when effective, safe combustion isnt possible, shutting the heater off entirely. 0000024909 00000 n
(Example), How Many BTU Of Heat Do You Need Per Square Foot? Overall, our favorites have safety measures in place to ensure safe operation whether they are freestanding gas heaters or mounted on a wall. 30,000 BTU. Therefore, if you continuously run your heater, you'll consume 1/3 gallon of propane per hour. These lead times are based on our best estimates and are updated weekly. Because the walls become thinner in relation to the circumference. } If the outdoor climate is mild or slightly warm, you may not require as much propane. Its helpful to check the manufacturers use and installation instructions. To confirm the approval of a product, simply: Click Find Products and see the listing of accepted products. Mr. Heater 30,000 BTU Vent Free Blue Flame Natural Gas Heater MHVFB30NGT. margin-top: 18px; BEST FOR LARGE SPACES: Mr. Heater F260560 Big Maxx . The one thing about these old houses that you need to keep in mind is that the raw wood started out life as a 44 and after over 100 plus years is now about a 33 or less so that limits heat gain. 30,000 maximum BTU - heats up to 1,000 sq. Based on Climate Zone, you know how many BTU of heat you need per square foot. 0000071729 00000 n
These calculations are theoretical in nature, with a lot of assumptions about insulations and so on. 0000013179 00000 n
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Here are some more details about the different heating methods used in garage heaters: There are other non-electric heaters as well, such as kerosene-burning options. If oxygen levels drop, the heater can produce toxic carbon monoxide gas that can be deadly. Oddly, not one inspector has ever commented negatively on the changes we made and in the last 25 years all I have received is complements on how well I maintain my property. Copyright 2023 Acton Media Inc. All rights reserved. October 2016 Hello, I'm installing a wall mounted vent free 30,000BTU propane heater. Hi Jack, those calculations are rather complex (many variables, non-linear temperature-energy correlation). Bring warmth and style to your home with the Pleasant Hearth 30,000 BTU 32inch Compact Vent Free Gas Stove. *Free Shipping: Applies to most orders over $99 in the continental U.S. with the following exceptions: **Shipping to Canada:You may be charged additional border fees and taxes when you receive your product. If you have a lot of appliances that use natural gas, you might need a more extensive line. To fully heat a room, calculate your heaters ideal size using a tried and true formula. Water Columnis the term used to measure pressure. Example: Miami, Florida, is in Climate Zone 2 and requires 35 BTU of heat per sq ft. Chicago, Illinois, is in Climate Zone 5 and requires 50 BTUs of heat per square foot. Bob, in his posting he said he was running black pipe through the wall. I avoid CCST at all costs. Secondly, you need to figure out what climate zone you live in.