$2,290.44
The Raypak 156A is the better gas pool heater overall, rated 3.3 to 2.6. The Raypak 156A leads on warranty, value and heating input. The Raypak 156A costs $108.56 less ($2,290.44 vs $2,399).
Hayward H-Series H135FD
An affordable heater for above-ground pools and spas where a short warranty and outdoor only installation are acceptable.
Amazon $2,399$2,399
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Raypak 156A for warranty (2-year warranty vs 1-year warranty), value ($15.27 per 1,000 BTU/h ($2,290.44, 150,000 BTU/h) vs $17.77 per 1,000 BTU/h ($2,399, 135,000 BTU/h)) and heating input (150,000 BTU/h vs 135,000 BTU/h).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every under 250,000 BTU gas pool heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Raypak 156A | Hayward H-Series H135FD |
|---|---|---|
| Overall rating | 3.3/5 | 2.6/5 |
| Value 35% | 65 $15.27 per 1,000 BTU/h ($2,290.44, 150,000 BTU/h) | 43 $17.77 per 1,000 BTU/h ($2,399, 135,000 BTU/h) |
| Heating input 25% | 50 150,000 BTU/h | 35 135,000 BTU/h |
| Efficiency 20% | 33 82% thermal efficiency | 33 82% thermal efficiency |
| Warranty 20% | 50 2-year warranty | 0 1-year warranty |
Specifications
| Raypak 156A | Hayward H-Series H135FD | |
|---|---|---|
| Heating | ||
| Gas input | 150,000 BTU/h | 135,000 BTU/h |
| Gas type | Natural gas or propane | Natural gas or propane |
| Thermal efficiency | 82% | 82% |
| Condensing | No | No |
| Low NOx | No | Yes |
| Heat exchanger | - | Cupro-nickel |
| Max water flow | 70 GPM | 125 GPM |
| Installation and controls | ||
| Ignition | Electronic | Electronic |
| Venting | Both | Outdoor |
| Digital controls | Yes | Yes |
| Automation or app | - | Yes |
| Weight | - | 100 lb |
| Warranty | 2 years | 1 year |