I had the same question myself.
Condensing boiler vs tankless water heater.
In some cases a boiler is needed and only a boiler will do.
While most tankless heaters are compact boilers could consume more space.
Condensing boilers work similarly to a conventional boiler in a lot of ways.
In yet other cases the right tankless water heater will do a good job since it only heats the water when you need it and it provides it quickly.
Actually had to speak to hydronic technicians.
Both choices are more efficient than electric models.
A small boiler is a very big tankless.
That said it is a cheap btu.
Condensing condensing boilers are not a type of boiler but more of an attribute that a boiler can have.
Condensing boilers are much more efficient in energy use and maintenance but are also more expensive to buy.
If a tankless was condensing and had better heat transfer elements than it would be called a boiler.
For instance you want to know the climate conditions around the house and whether or not there s enough space for the units.
In the end the important differences come down to getting high efficiency boilers vs.
They are slightly more expensive to manufacture but are over all on par with non condensing tankless water heaters that need to use expensive stainless steel venting materials and are less efficient about 80.
Deciding between a boiler or a tankless water heater depends on several conditions.
On the other hand condensing tankless water heaters may reduce the expenses for making it able to run overall.
Conclusively condensing tankless water heaters are very efficient up to 98 real energy savers and use inexpensive venting material.
In other cases you can certainly use a water heater and it will also be more efficient than some boilers.
It is already established that condensing type of water heater is more efficient than the non condensing type for about 10 to 15 percent.
Go with the boiler.
Tankless hot water heater a smaller less efficient less volume non condensing boiler.
While tankless water heaters run more efficiently than storage tank water heaters replacing a tank water heater with a tankless can be expensive and the payback time can be longer than the warranty.
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.
I really like tankless but i still say boilers are boilers and water heaters are water heaters.