Raypak heaters lack efficiency?

sbcpool

Well-known member
Mar 10, 2015
462
Upland, CA
My natural gas utility offers rebates on pool heaters with >84% efficiency, but it looks like there aren't any Raypak residential low-NOx heaters that meet that requirement. There are Hayward and Pentair heaters that do. I just wanted to check if Raypaks are still the most recommended on TFP and if there might be a model I'm missing.
 

sbcpool

Well-known member
Mar 10, 2015
462
Upland, CA
Thank you. That heater is almost $10,000 and the rebate is only worth $750. I'm probably going to end up with a Hayward, but I'm still researching their reliability and warranty.
 

sbcpool

Well-known member
Mar 10, 2015
462
Upland, CA
Yeah, I just saw that. Still, $2,300 isn't bad. I still can't find anywhere selling a low NOx Raypak with cupro-nickel heat exchanger (residential models, that is).
 

mattw221

Member
Apr 18, 2008
22
Also remember that the heaters that are +84% efficiency usually have a fan motor to reach that efficiency and when eventually the fan fails their usually $500+ to replace. The Raypaks don't have
an expensive fan assembly. The design is simpler and maybe slightly less efficient but it makes up for it when you need to replace parts down the road.
 
  • Like
Reactions: borjis

sbcpool

Well-known member
Mar 10, 2015
462
Upland, CA
I do want to lean towards the Raypak, but I can't find a residential low NOx model with cupro-nickel heat exchanger. Maybe the Southern California market isn't large enough to justify the expense of making that particular combination.
 

mattw221

Member
Apr 18, 2008
22
I'd look at the Raypak ASME version. You will probably find them easier and they build that version with cast iron headers and a heavier duty exchanger.
 

sbcpool

Well-known member
Mar 10, 2015
462
Upland, CA
Thank you. I did find the CR406AENX, but I think because I live right at the 2,000 foot elevation line that I need the 2,000 - 6,000 foot version, which nobody seems to have. Does anyone know if the different elevation models make that much of a difference?