Can A Tankless Water Heater Be Used For Radiant Floor Heat

All water heaters waste heat energy even when the burner is off and the unit is sitting idle between heating cycles.

Can a tankless water heater be used for radiant floor heat.

The rinnai uses considerably less energy than a tank type heater and costs less to install than a boiler with a heat exchanger. Dual purpose systems 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. It s true that a tankless water heater can easily heat most single family homes. The reasons are outlined below.

The down side is two heat sources. Water heater for radiant heat water heaters are good for radiant floor heating because they maintain a low temperature. You really only need a maximum of 120 f for your floor. Granted the unit dedicated to heating the floor only wastes heat during the winter months.

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. As such we rate it with 5 stars out of 5. While most radiant systems get their hot water from either a tank type water heater or a cast iron boiler my home s heat and domestic hot water dhw are both provided by a single rinnai tankless or on demand water heater. Ft lightweight 60 lbs can mount conveniently on a wall vent.

They re extremely well engineered quiet compact 2 2 cu. The other consideration is efficiency. Takagi on demand water heaters have many excellent features. However just because you can doesn t mean you should.

And the cheaper tankless heaters are usually not recommended or warranted by most manufacturers to be used in a radiant heating system and it will probably void your warranty. We design radiant heating systems to suit the unique characteristics of tankless water heaters. It is the safest choice as well. But standby losses for six months out of every year can add up.

We plumbed the radiant heating loop of our vacation cabin to the domestic hot water making an open loop system. It s also true that a tankless water heater is smaller and less expensive than a boiler or a furnace. A tankless hot water heater is ideal for this application since there is no water to be kept hot at all times. Today tankless heaters are low cost high efficient units that are cheaper to maintain operate.

This model has the most impressive flow rate it is well made and it comes with all you are going to need. The answer is you can.