The down side is two heat sources.
Can a tankless water heater be used for radiant floor heat.
This model has the most impressive flow rate it is well made and it comes with all you are going to need.
It is the safest choice as well.
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.
All water heaters waste heat energy even when the burner is off and the unit is sitting idle between heating cycles.
Ft lightweight 60 lbs can mount conveniently on a wall vent.
It s true that a tankless water heater can easily heat most single family homes.
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.
The rinnai uses considerably less energy than a tank type heater and costs less to install than a boiler with a heat exchanger.
Today tankless heaters are low cost high efficient units that are cheaper to maintain operate.
It s also true that a tankless water heater is smaller and less expensive than a boiler or a furnace.
The best tankless water heater for radiant floor heat is the takagi th3 natural gas.
The other consideration is efficiency.
You really only need a maximum of 120 f for your floor.
They re extremely well engineered quiet compact 2 2 cu.
We design radiant heating systems to suit the unique characteristics of tankless water heaters.
Granted the unit dedicated to heating the floor only wastes heat during the winter months.
As such we rate it with 5 stars out of 5.
However just because you can doesn t mean you should.
Takagi on demand water heaters have many excellent features.
A tankless hot water heater is ideal for this application since there is no water to be kept hot at all times.
We plumbed the radiant heating loop of our vacation cabin to the domestic hot water making an open loop system.
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.
The answer is you can.
The reasons are outlined below.
They have become the standard heat sources for radiant heating applications.
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.