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.
Tankless water heater vs boiler for radiant heat.
Tankless water heaters are a proven technology with a track record of many years for heating dhw see installing on demand water heaters 2 06.
Do you want your water stored or on demand.
You really only need a maximum of 120 f for your floor.
A water heater heats water that will be used while cooking or cleaning.
When it comes to water heaters keep in mind that though there are different types of water heaters they do work in similar ways.
This model has the most impressive flow rate it is well made and it comes with all you are going to need.
The best tankless water heater for radiant floor heat is the takagi th3 natural gas.
As for the latter you may want to consider getting a tankless water heater instead.
The rinnai uses considerably less energy than a tank type heater and costs less to install than a boiler with a heat exchanger.
You want a boiler because it s more than capable of heating a home through steam and radiant heat procedures.
The tk 4 s min fire output is about 10 000 btu hr which is clearly above your average load and there s really no stopping it from cycling on off it s modulation range.
This model has the most impressive flow rate it is well made and it comes with all you are going to need.
A water heater heats water that is constantly being replenished since it is connected to taps.
Boilers and home warranties sometimes here at landmark home warranty we have individuals who are confused as to why a home warranty may cover a water heater but doesn t cover boilers.
The biggest difference between boilers and tankless water heaters is that the first is the most common choice for radiant heat.
Your real heat load is less than half that stated and a tankless hot water heater is a dreadfully poor choice for a slab heater when the real heat load is under 15 000 btu hr.
You ve got conventional water heaters tankless water heaters and hybrid water heaters along with various sources of fuel which include electric gas and solar energy options.
Water heater for radiant heat water heaters are good for radiant floor heating because they maintain a low temperature.
A boiler is used to heat a home using steam and radiant heat techniques.