Water heater replacement in Knoxville, swapped and brought to code

40 and 50 Gallon Gas Tank

Most gas homes run a 40 or 50 gallon tank, and the right one depends on household size and how many showers run back to back. A like-for-like swap connects to the existing gas line and flue, but the venting is checked, not assumed: a new heater with a different draft hood height or input may need a new vent connector, and the flue must slope up to the chimney. We fit a gas shutoff and sediment trap where missing, connect with a new flexible connector, and verify draft once it is running.

Electric Tank Swap

Electric tanks are simpler to replace: no venting and no gas. The new unit connects to the existing 240 volt circuit, which has to match the heater's elements; a bigger heater may need a larger circuit from an electrician. Electric tanks recover more slowly than gas, so households that run out of hot water often size up a step when they replace. We check the wiring connection, fill the tank completely before power goes on so the elements cannot burn out dry, and set the thermostats to a safe temperature.

Expansion Tank and Code Updates

Many older installs predate current requirements, and a replacement brings them up to date. A thermal expansion tank is needed where a check valve or pressure regulator closes the system. The relief valve needs a discharge pipe running to within a few inches of the floor or to a drain. Strapping, a drain pan where a leak would damage finished space, dielectric fittings and proper clearances all get checked. These are the items inspectors look for, and they're what keep a new heater safe.

Water Heater Haul Away

The old heater has to go somewhere, and a full tank is heavy. We drain it, disconnect it, carry it out and dispose of it as part of the job, so it doesn't end up in your garage or at the curb. If the old tank has leaked, the floor or pan beneath it is checked for damage before the new one goes in. Draining it also shows how much sediment it built up, which is a useful clue to how often the new tank should be flushed.