A light commercial version of the T-K3, the T-K3-Pro incorporates some features of the T-K3, but with commercial-grade quality materials so it can withstand light commercial conditions. The tankless ...

[WJCarpenter]’s gas water heater uses a small pilot light that needs to stay burning permanently to ignite the main burners as required. Four or five times a year, the pilot light goes out and needs ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...