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Question DetailsAsked on 12/8/2016

Connect a 100lb. propane tank to a new cook range. This would include making the conversion from natural gas to LPG

I need a plumber/gas fitter to connect a 100lb. propane tank to a new cook range. This would include making the conversion from natural gas to LPG in the stove, connecting the stove to a ball valve, then connecting it to the gas supply line. installing the supply line, and connecting it to a regulator and finally to the propane tank. Note the stove has all the hardware needed to make the conversion and has a regulate built in.

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3 Answers


I would first confirm this is legal in your area if this is an indoors cooktop - in many areas, indoor appliances fired with propane are not allowed as a new propane service installation if the property is served by regular natural gas service. Also, generally only legal if a rated outdoor permanent service tank - buried or on proper foundation and legal distance from the house (meaning buried gasline to the house) and designed for permanent installation, which standard DOT 100# portable tanks are not. Just a loose 100# bottle standing by the house is generally NOT legal for in-house appliances - only for "portable" outside barbecues and smokers and such.

If OK, then Plumbing would be the normal Search the List category (might require a Gas Fitter/Pipe Fitter in a few mostly northeast states, but most plumbing outfits have at least one person certified for that is required in your state or city) - though I am not sure a plumber would install the conversion kit.

I would call an Appliance Repair - Large place (your Search the List category) and ask if they will do the conversion AND the gasline install - some who routinely do large appliance delivery and installations in new properties have that capability or a plumber on call to do the gasline part, and they will sometimes do it themselves if an outdoors (patio) cookstove with just flexible hookup lines - otherwise you might be into a plumber for the gasline installation to the shutoff valve under the cookstove, then a large appliance repair person to install the conversion and test the cookstove. And quite possibly a gas service supply company to provide/install the tank.

I also question WHY you would do this conversion if you have natural gas already - which is cleaner, generally not so stinky, does not transfer taste to food as much, and almost always propane costs about 2-5 times as much as natural gas per equivalent heat unit. Or is this a conversion from electric to propane and you don't have natural gas feed to the house ?

Answered 3 years ago by LCD



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Answered 3 years ago by Member Services


One subject I did not cover - depending on which version of the building and fire codes your area adheres to, and any local amendments, all propane tanks generally have to be 5 or 10 feet from any household vent or opening or equipment (like generator or A/C or fan exhaust or any intake) regardless of size, generally 10' from buildings if 125-500 gallons capacity, and 25' from buildings if 500-2000 gallon capacity (sometimes allowed closer if underground).

Also, many area prohibit permanent connection to or use of a portable or temporary outdoor tank to household appliances, and commonly outdoor tanks cannot exceed about 10 gallons (about 50 pounds) unless they are permanently mounted on a foundation or buried in accordance with code. Hence, the little 5 gallon (20#) and 10 gallon (40#) tanks are generally legal for use on outdoor barbecues and such, but not on permanent fixtures like hot tubs, pools, or for house appliances - you need a permanent-rated tank which is permanently installed for that. And any lines to permanent outdoor tanks have to be permanent piping, not flex tubing/hoses, and buried if extending away from the wall.

There are also commonly additional restrictions on required distances from property lines, and multi-family building gas tank use.

So - be sure to research what is allowed before committing to this - there is a good reason (in addition to the normally greater expense) why indoor use of appliances needing propane tanks are very rare except in areas where only fuel oil or propane are available for cooking/heating fuels.

Answered 3 years ago by LCD

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