Can You Use A Tankless Water Heater For Radiant Heat

And i would never recommend the use of a tankless water heater for a hydronic space heating system.

Can you use a tankless water heater for radiant heat.

Sample temperature curve for an on demand unit. 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. 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. We will also be installing 2 separate water heaters.

A tankless hot water heater is ideal for this application since there is no water to be kept hot at all times. One to supply domestic hot water and a separate water heater to supply the radiant floor. If you don t want to use a boiler you may be able to use a tank style water heater but only in some jurisdictions since using a water heater as a boiler may be a code violation. Tankless water heater can be used to produce radiant heating.

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. Water heater for radiant heat water heaters are good for radiant floor heating because they maintain a low temperature. Make sure you invest in a high efficiency tankless water heater. However it is important to understand that not all of them are suitable for this task.