Convert pool heater from Propane to Natural Gas

[Rocco]

I have an opportunity to buy a never been used Pentair Minimax Triton 400 BTU pool heater to replace may aging Pentair Minimax Triton 400 BTU pool heater. However the heater for sale is a propane heater and my current one is natural gas.

Any idea how difficult and expensive it would be to convert the propane heater to a natural gas heater? Would I be able to use the existing parts from my natural gas heater?

 

[Richard320]

Studying the parts manual https://www.parts4heating.com/v/vspfile ... rMaxIG.pdf it looks like the burner and the gas valve need to be replaced. I'm betting the price of the used heater and the parts would cost close to what a new heater costs.