The size of the pipe required depends on the BTU/hour demands of the appliance, as well as the length of the pipe. The Bluestar installation guide says the line must be the same size or larger than the inlet pipe, and recommends that it be 1/4" larger. I just installed my new RNB-6B this morning, in fact. To figure out the size of the gas line, I added up the BTU requirements of all the burners, plus the oven. This came out to about 130,000 BTU, depending on the simmer burner(130F?). This is clearly a "worst case", since I doubt I'd ever be cooking wide open like that. The fuel gas code has a table you can use to find out what size pipe you need. See the link below for reference. So, I need 130kBTU/h, or 118 cf/h to pass through my 30 ft pipe run. The table says 1/2 inch pipe is just a bit too small, but 3/4 inch is plenty. Under normal use, 1/2" would probably be okay (97 cf/h), but I'm running new pipe anyway, so, 3/4 it is! Good luck to you! I've been reading the saga of the Wolf burners, and it's really puzzling. I am able to report that the Bluestar is firing on all ports with the oven on, and all burners cranked to high. Here is a link that might be useful: Gas Pipe Sizing - King County

If your pressure at the meter is 6" WC, a 1/2" line will not feed your 213,000 BTU load. Even if the regulator at the meter is adjusted up to the 10" domestic gas limit, you still would have far too much pressure drop at that consumption rate. You need AT LEAST a 3/4" line. 1" if you cannot raise the pressure from your meter. The copper line inside your house better not have 2psi in it. That would violate many local building codes. The red bands you speak of are the pressure rating of the gas tubing, not what the tube contains. Each appliance that needs a regulator for pressure below 10" WC should have its own regulator. Many gas appliances do not need such a regulator or use a gas control vavle with the regulator built in, like your domestic water heater. Was that sufficient to confuse the issue further?

Installation manuals for gas appliances give tables of gas pipe sizes over distance. A half-inch line might theoretically be large enough for the grill, but it if it's over a hundred feet of pipe from the meter, and it's a very large barbecue, then maybe not. Also, code requires the gas line to be sized for all appliances on the line and I'm betting the range and grille together will need 3/4" pipe. You can educate yourself by reading the installation manual of the grill you plan to buy, or any gas appliance (definitely any garage heater). I'm not a professional, but I'm going through a similar exercise with a garage heater which is how I learned this bit. Regarding the pros, note that I hired a very good company to put in gas to my dryer, informing them that I would eventually heat the garage. I am now replacing their pipe because it is not big enough. Make clear to your contractor or consultant any future expansion you might anticipate (tankless heater, fireplace, generator)

In the last 4 years I had the gas company out several times. First off they actually donÂt want to admit that have a supply problem. I guessing it could get them in trouble with the Public Utility Commission. When I call during the gas companyÂs office hours they send some low level person out with a flash light. He usually looks at the burner and says he needs to check the pressure supply at their distribution regulator. Which is several blocks North of my home. ThatÂs the last I see of him. I get up at 4 AM and make coffee on the stove. One burner sounds like a hot air balloons burner in warm weather. At 32 degrees it about half power at 4 AM at little after 6AM it about 1/3 power people are getting up and gas usage peaks for the day. After 8AM it starts to improve. Noon it back to normal. So that sequence starts prior to office hours. It doesnÂt get real cold here for all day very often but thatÂs been the only time I gotten them out here was during the day as the problem starts disappearing. These wood bungalow homes were build for gas heat using a space heater in each room gas hot water gas stove . Think electrical supply service was rated @ 25 or 30 amps total. Gas supply line is 1 1/2 inch running the length of the house to the kitchen . Smaller lines tap off it to each individual gas jet .