Does anybody know the Max BTU's my Amtrol 41 gal indirect heater can use?
I will be converting from oil to natural gas and am trying to get an idea of max heat load on the boiler. It has electronic controls and when I punch up the BTU it displays as high as 149000 BTU. How accurate is this reading? Is it possible that it would be that high?
I did not find any info on that exact model. Most amtrol indirect have 3/4" boiler side piping. They also have a fairly high head loss exchanger design. I would be surprised if it will allow more than 4 GPM to flow through.In the very best day that exchanger would release enough energy to give you a delta t of 40 degrees. 4X40x500= 80,000 BTU.
In reality I am not convinced it would be that high.
The maximum the tank can absorb would be 80,000. That is based purely on the boiler side connection. The real number may be lower depending on the surface area of the exchanger.
Amtrol should have those numbers if you need to get closer.