Can I Replace My Boiler With A Tankless Water Heater

My main concern is making sure that i size the unit right.

Can i replace my boiler with a tankless water heater.

Tankless water heaters are designed to heat cold water for domestic use. I m planning on using a noritz condensing tankless hot water heater as a boiler for my hydronic heating system. Will also use another thwh for domestic water as code will only allow the use of a heat exchanger system which ends up being more expensive than 2 seperate wall hung boilers. The safest way to know what your local building department requires is a quick call or visit to the department.

Tankless water heater to replace boiler in recirc heating system. This ef rating is based on test procedures developed by the u s. Generally a homeowner can replace an existing water heater themselves but should obtain a permit. I know if you use a noritz tankless gas water heater as a boiler the warranty on the heat exchanger goes from 12 years down to 3 years.

This site is free ad free pop up free and made possible by. I saw a couple of others but do not remember the brands. Take a look at noritz tankless gas water heaters and boilers. Noritz boilers are designed to be a boiler.

Noritz offers a couple of asme models. I am looking to do the same thing replace my 30 year old boiler with a tankless boiler. Now that you have decided to replace your tank hot water heater with a tankless hot water heater you will be saving as much as 100 or more annually on your water heating bills. But really your problem is that your heating system is old old boilers run at about 65 efficiency i e.

I need to install a tankless water heater to take the place of the boiler in a recurculating hot water heating system. Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. You can replace your boiler with an electric instant water heater which requires no tank. For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating.