Tankless Water Heater Vs Boiler For Radiant Heat

Thanks for any help.

Tankless water heater vs boiler for radiant heat. Usually these systems maintain the heating process for as long as the tap remains open. The water isn t necessarily potable but can be used to heat pipes within the home s walls or heat a radiant heat system. Installation can be complicated and expensive. Tankless water heaters are more compact and can heat up water as you use it.

Hot water heater a hot water heater is used to give you domestic hot water for your appliances like dishwashers and washing machines as well as fixtures like showers and sinks. The best tankless water heater for radiant floor heat is the takagi th3 natural gas. Gas heaters can have a higher capacity. 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 has limits.

A tankless water heater provides direct heating to the pipes just before the tap. They both heat hot water this is true but their function is different. A boiler turns water into steam to heat a home the diagram above and the animation below show a very simple idea of how a boiler works. Yes the heater and the installation aren t necessarily cheap but the benefits you get in the long term are very noticeable.

Proper venting is critical. Operating costs tend to be lower. Instead a boiler turns water into steam. I m currently using a toyotomi kerosene water heater rated at 148 000 btu s.

Gas heaters pose a. The name is a bit misleading because a boiler doesn t actually boil water. This model has the most impressive flow rate it is well made and it comes with all you are going to need. Water heaters with tanks are a better option for large families since they can store hot water and reduce energy use if.

The boilers i ve seen on the radiant heating sites are much more expensive than the on demand i m using now. What i need is a good explanation of why i can t use an on demand water heater instead of a boiler. Many people use these terms interchangeably but the reality is that they are very different. 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.

Gas water heaters are expensive to purchase. Thermostats regulate the heat and the moment you open the hot water tap the system pulls cold water to replenish the loss in water in the tank. Now you should look at the units as a long time investment. Boilers heat water very quickly and like hot water heaters are available in tanked and tankless versions.

Using a tankless water heater to supply radiant heating systems is also good for your bank account. 1 comparison chart of electric vs gas tankless water heaters. A tankless water heater heats the water instantly instead of storing it in a tank.