What does a hookup actually involve?
More than the hardware store aisle suggests. Here is what changes by appliance, and the thing that most often goes wrong with each.
| Appliance |
What the hookup involves |
What goes wrong |
| Range or cooktop |
Shutoff behind, rated connector, anti-tip |
Connector kinked against the wall when the range slides back |
| Dryer |
Shutoff, connector, correct orifice for the fuel |
Natural gas orifice left in on a propane house |
| Grill or fire pit |
Stub-out, outdoor-rated valve, quick connect |
Indoor connector used outside, corrodes |
| Pool heater |
Dedicated run, trap, bonded per code |
Tied into a system already at capacity |
| Standby generator |
Sized run, shutoff at the unit |
Sizing done off the appliance plate, not the whole load |
Why does the inspector want a sediment trap?
Because gas piping carries more than gas. Scale, rust and pipe-thread debris move down a system over years, and a sediment trap is a short dead-leg below the connection that lets that material drop out before it reaches the appliance valve. On an older Red Oak house with black iron that has been in the wall for decades, there is more of it than you would expect, and it all arrives at whatever valve sits lowest on the run.
It costs a few fittings. A control valve fouled by debris costs a service call and sometimes the valve. It is also one of the first things an inspector checks, so a hookup done without one is a hookup that does not pass.
Can my appliance run on propane instead of natural gas?
Most can, but not by adjusting anything in the field. Propane runs at a different pressure and needs smaller orifices, so converting an appliance means installing the manufacturer’s conversion kit made for that model.
We work on both fuels, and plenty of property out past the city limits runs on an LP tank rather than a meter. What we will not do is put an appliance into service on the wrong fuel with the original orifices in it. That combination burns rich, sooty and hot, and it is a genuine hazard rather than an inefficiency.
What do you not do on an appliance hookup?
The gas side is ours. The electrical is not. A dual-fuel range, a dryer that needs a 240-volt outlet, or a generator transfer switch all need an electrician, and we would rather say that up front than have you find out on install day.
We also do not carry appliances up stairs or set them level as a cabinetry job. And if we open the line up and the connection will not hold a test, we stop there and it becomes a leak we find before it is a leak you smell. That is the right outcome, even when it turns a one-hour visit into a longer one.