What size pipe are you using on your 400 or even 300 series gas heater and what length?
I've seen Pantair's size chart and had originally thought about going with the 400 but may drop don to the 300 due to the length from the connection point.
Thanks
I've seen Pantair's size chart and had originally thought about going with the 400 but may drop don to the 300 due to the length from the connection point.
Thanks