Pool And Spa Heaters
Here is a Sta-Rite Maxi-E-Therm pool and spa heater. This heater is my favorite gas heater for several reasons:
1)Note the round combustion chamber - no rats or debris can get inside combustion chamber.
2)It has one of the highest efficiency ratings in its class and price, mainly from the way the gas is mixed with the air before being introduced into the combustion chamber - notice how the gas valve is directly connected to the circular blower which pumps the gas/air mixture to combustion chamber.
3)Reliability - its one the most reliable and trouble free and easy to maintain gas heaters I have ever worked on - and I have over 20 years experience with heaters!
4)Because of its round shape, size and weight, it can be easily installed almost anywhere.
5)The outside is made of a composite material which does not rust!
6)This heater has no pilot-it uses a ceramic ignitor to ignite burners-extremely reliable! (photo of ceramic ignitor at link below)
If you are having trouble with your heater, below is a link to common heater problems:
common heater problems


Shown below is the same heater in a square box and different color - same on the inside but available in more sizes. (BTU's)

Here is a heater from the Raypak heaters brand - can't really say much bad about this heater - another good design. The only negative things I can say about it is it can be a little harder to install than the Max-E-Therm heater shown above. The reason for this is because if the plumbing needs to be plumbed into the left side (when facing front of heater) the manifolds must be exchanged which takes time and labor. Also, the cabinent is made of metal, which can corrode!

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