Can I Use A Tankless Water Heater For Hydronic Heating

The economics of using a tankless water heater to supply both dhw and heating are also quite attractive.

Can i use a tankless water heater for hydronic heating.

Make sure you invest in a high efficiency tankless water heater. 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. They function similar to the muchkins and copper fin boilers you might be able to pay for two tankless v s one 90 boiler of the same btu rating. A well designed hydronic heating system can be very economical in terms of energy use.

It seams they know something about it. With optional equipment it can be used as a single heat source in combination systems for potable hot water and radiant heating. He said their hydronic air handlers are designed to work with their water heaters. 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.

However it is important to understand that not all of them are suitable for this task. For even greater savings it s possible to install a solar thermal system that will allow the sun to do some of the water heating work. However that wasn t the question. I recently spoke with a rinnai engineer about this noting that rinnai also sells combi boilers for space heat and dhw.

This is especially true when a high efficiency tankless water heater is used as the main hot water source. Water heater for radiant heat water heaters are good for radiant floor heating because they maintain a low temperature. And i would never recommend the use of a tankless water heater for a hydronic space heating system. You really only need a maximum of 120 f for your floor.

Matter of fact quite a few plumbing companies install them either hydronic only or combo units using a heat exchanger. Can you use a hot water tank for infloor hydronic heating or hot water radiators. Designed as whole house alternatives to traditional tank type water heaters or for use as supplements to renewable energy systems including solar and geothermal. What you can t do is use a tankless water heater in a closed loop application.

That said it is a cheap btu. 1 100 for the tankless heater 1 400 for the pex tubing and 2 400 for the various components controls and fittings. Total cost for my system was around 5 000 not including labor. Click here to download free schematic plans and to watch a video on how to make it happen.