Our home was built around 1963 and has Gas powered Hot water based heating, some portion of the house is floor heated and some with radiators emitting heat from hot water. The heater may be 10-12 years old. This is Lochinvar heater. Our inspector said this may be at its end of the life. Our house has central air conditioner and air conditioner handler is in attic up above the bedrooms.
This our third winter with this heater and broke three time already and spent ~800 USD for parts and labor.
Here are my questions,
- Our system doesn't have mixing valve to cool down the water to certain level before it goes into the concrete floors. How dangerous/expensive this would be if this breaks?
- If missing mixing valve is a problem and since I already spent ~800 USD for maintanance, should I wait for the boiler to die or should I proactively replace it with new one?
- If I am going to replace it, are there any advantages to going air based heating? Is it feasible since our air conditioner handler is already in the attic? or should I stick with water based heating?
I understand, I am asking a lot of questions in one question, I am just afraid, breaking it up in smaller questions might not give the full picture.