My main concern is making sure that i size the unit right.
Can i replace my boiler with a tankless water heater.
The safest way to know what your local building department requires is a quick call or visit to the department.
I saw a couple of others but do not remember the brands.
For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating.
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.
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.
You can replace your boiler with an electric instant water heater which requires no tank.
Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models.
Noritz boilers are designed to be a boiler.
I am looking to do the same thing replace my 30 year old boiler with a tankless boiler.
Noritz offers a couple of asme models.
I need to install a tankless water heater to take the place of the boiler in a recurculating hot water heating system.
I m planning on using a noritz condensing tankless hot water heater as a boiler for my hydronic heating system.
Tankless water heaters are designed to heat cold water for domestic use.
But really your problem is that your heating system is old old boilers run at about 65 efficiency i e.
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Why it was a good choice to replace our old propane water heaters and the steps we took to convert our old gas propane water heaters to electric tankless water heaters.
Tankless water heater to replace boiler in recirc heating system.
This ef rating is based on test procedures developed by the u s.
I understand how easy it is to be overwhelmed at making a change as big as a switch to a tankless water heater.
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.