Gas tankless water heaters have many complex installation requirements that vary by the unit’s model and size. Professionals must consider the location of the unit, vent pipe requirements ...
Condensing tankless water heaters use a second heat exchanger to transfer more heat to the water. Condensing units lower the exhaust gas temperature to a point where it condenses, which can help ...
Non-condensing tankless water heaters have a single heat exchanger. The water flows through the exchanger, and any unused exhaust heat releases through a vent. They're less of an investment ...
Direct vent water heaters bring combustion air from outside and exhaust gasses directly outside ... switching from a tank-style water heater to a tankless unit. How long does it take to install ...