How do you intend to raise your gas pressure to the range?

How many BTU does the range require?

How long is the line to the range?

Do you have a drawing of all of your gas lines, with dimensions, # of fittings, and BTU requirements for all appliances?

You would be well-served to call in a plumber licensed to work on gas connections...

Gas is tricky and dangerous. If you have to ask these questions, you really should be having the conversation with a licensed and bonded plumber instead of on an online forum.

OK, now that we have the mandatory safety warning out of the way, let's talk about your question :-)

As with any type of pipe, the diameter determines the pressure drop and the maximum sustainable flow rate. For most types of pipes, oversizing is not a problem (domestic hot water might be an exception to this rule). It simply costs more in parts and possibly in labor, but it'll work just fine. Adapters that step down the diameter at point of use are readily available.

Your plumber will be able to do the math and will then tell you what the minimum diameter is so that none of your gas appliances are starved for fuel. In extreme cases, he might tell you that you have to install multiple runs, but frequently it is OK to supply multiple appliances from the same pipe.

Stepping up the gas pressure is usually not possible. Unlike with water, you can't just install a booster pump. Your only option is installing a bigger diameter pipe. Reducing pressure is possible, but you shouldn't have to do anything special. All appliances already come equipped with a suitable regulator.

Solid black pipe is commonly used in residential applications. It's cheap, and plumbers know how to work with it. Flex pipe is usually more expensive and is handled differently. Most plumbers should be familiar with it, but some might balk at using a product that they are not usually working with. Building inspectors could also complain. My inspector told me that for a while, flex pipe wasn't legal for residential installations; and I wouldn't be surprised if that's still true in some jurisdictions.

Better double-check before you make a costly mistake that needs to be ripped out again. And don't even think about doing the gas installation without a permit/inspection. That's way too dangerous.

M

Thank you for your response. So in theory I as in "do it myself" can put a 3/4 inch flex pipe line from the area of the gas lines to the area of the range THEN (right?) have a HomeFlex Gas Licensed plumper finish installing the tap to the gas line and connecting it to the range...

because the plumper suggested that running the gas line through the floor and all the regulators and work would estimate to $4000... (Its a condo and I don't have access to the other side of my floor..)

aliceinwonderland_id

How do you intend to raise your gas pressure to the range?

How many BTU does the range require?

How long is the line to the range?

Do you have a drawing of all of your gas lines, with dimensions, # of fittings, and BTU requirements for all appliances?

Well all I know is the plumper stated that the gas company would have to raise "it from 0.4 to 2" i assumed pressure but maybe he was talking about a main gas line regulator...

the range requires 40,000btu and it would be 20-30 ft. depending on what route it's run through the floor..

this is what I imagine

HOME-FLEX_Installation_Manual.pdf

https://www.google.com/url?sa=t&source=web&rct=j&url=http://homeflex.com/downloads/HOME-FLEX_Installation_Manual.pdf&ved=2ahUKEwjoxpKQivbZAhWoq1QKHZiNCrIQFjAAegQIBxAB&usg=AOvVaw0FEffLVfPlgREgv53Fk6oI

Many competent plumbers will be hesitant to finish a gas job done by a non-licensed person since they won't know if the line was run properly with correct bends, support, avoidance of line damage, etc.

$4000 doesn't seem anywhere close to right for a 20-25' line unless they're having to do numerous cement bores or other stuff.

Some inspectors will have concerns about too large of pipe due to problems of condensation in the line. I think this is very dependent on the gas supplier and the composition of their gas.

The gas entering your building is high pressure. At some point this is stepped down to the low pressure needed by appliances. It is possible in some cases to run high pressure to the appliance and step it down (with a regulator) at the appliance. This latter is common for long runs or in remodels where a new range needs more than the existing line can provide.

As stated above, talk to a licensed plumber before doing anything. Gas explosions aren't good.

Yes, $4000 sounds really high. I had a much longer run installed that practically wrapped around half the house in a really complicated fashion. Several floor penetrations and all inside walls. This admittedly was a couple of years ago, but in one of the most expensive markets in the country. Cost me $2500.

Call around and get a few more quotes. A few thousand dollars might be correct, as we don't know enough about your project. Maybe it really is this complicated. But $4000 sounds excessive.

aliceinwonderland-

Direct, to the point, and 100% dead-on.

Have you run this by the HOA? Getting a permit? If those are both a "no", forget the gas line and buy a propane BBQ.

You are responding to a 5 year old thread. I'm sure he's moved on.