Can You Use A Tankless Water Heater For Radiant Floor Heat

Today tankless heaters are low cost high efficient units that are cheaper to maintain operate.

Can you use a tankless water heater for radiant floor heat.

You actually have a choice between them as you can use a water heater or tankless for radiant floor heating and not just a boiler. So using the unit for radiant heating generally has little or no effect on the sizing calculation. As you can see this allows the boiler to heat a tank of potable water which in turn can provide domestic hot water and floor heating in an open or closed configuration. A dual purpose system relies on only one water heater to supply both the hot water requirements for the home and the warm water needed for the radiant floor heat.

A tankless hot water heater is ideal for this application since there is no water to be kept hot at all times. We design radiant heating systems to suit the unique characteristics of tankless water heaters. The reasons are outlined below. Sample temperature curve for an on demand unit.

This model has the most impressive flow rate it is well made and it comes with all you are going to need. You really only need a maximum of 120 f for your floor. The water from the boiler to this heat exchanger flows 24 hours a day in a closed loop making the heat exchanger continuously active i e. And i would never recommend the use of a tankless water heater for a hydronic space heating system.

The best tankless water heater for radiant floor heat is the takagi th3 natural gas. Takagi on demand water heaters have many excellent features. Water heater for radiant heat water heaters are good for radiant floor heating because they maintain a low temperature. As such we rate it with 5 stars out of 5.

The system with a tankless water heater will also be much more responsive have unlimited supply of hot water and clean water running through the floor heating pipes without sediments and other mineral build ups. Though they are sold primarily for domestic hot water tankless heaters are actually well suited for radiant heating which operates at low temperatures compared with for example hot water baseboard. Even if only part of the home uses. They re extremely well engineered quiet compact 2 2 cu.

They have become the standard heat sources for radiant heating applications.