H-Series Heater 135,000 BTU - Natural Gas
Hayward
SKU: H135ID1
The H-Series 135,000 BTU heater for above-ground pools and spas combines leading technology with ease of operation and superior performance.
Replacement SKU: HS135FDN
Features
The H-Series 135,000 BTU heater for above-ground pools and spas combines leading technology with ease of operation and superior performance. Featuring a standard cupro nickel heat exchanger and an energy-efficient combustion chamber, the Hayward heater provides 135,000 BTU input. A forced-draft design makes this heater completely impervious to any high wind situations. The patented polymer header design provides superior hydraulic performance. And a simple plug-in 120 volt electric cord is provided for simple installation.
Features and Benefits
- 135,000 BTU input for above-ground pools and spas
- Standard Cupro nickel heat exchanger for greater durability in high flow or occasionally aggressive water chemistry conditions
- Electronic thermostat with easy to read LED digital display of temperature and diagnostics
- Forced draft combustion eliminates all outside weather variables such as high-wind conditions
- Meets the South Coast Air Quality Management District (SCAQMD Rule 1146.2) Low NOx emissions standards in all Low NOx areas that apply the SCAQMD standard
- Plug-in 120 volt electric cord (3 ft.) for easy installation

- EXPERT LINE products can only be purchased through your local pool professional or in-store. Â Exclusions, other terms, and conditions may apply.
- 3+ Year Parts and Labor Warranties*
*When sold by a Hayward Rewards® partner. Exclusions, other terms and conditions may apply.
| Active Defrost | No |
|---|---|
| Application | New Construction, Renovation, Aftermarket |
| Boost Mode | No |
| Brand | Hayward |
| Channel | Expert Line |
| Circuit Amps | 5.5 |
| Compressor Speed | N/A |
| Cooling Capability | No |
| Fuel Type | Natural Gas (NA) |
| GTIN | 610377360463 |
| Heating Capacity (BTU/hr) | 135,000 |
| Hertz - Heaters | 60 Hz |
| Kilowatts | 40 kW |
| Warranty - Labor | 1-year |
| Low Ambient Operation | Yes |
| Master Carton Qty | 1 |
| Maximum Breaker Size (Amps) | 15 |
| Minimum Operating Temperature | 40 °F |
| Pallet Qty | 1 |
| Warranty - Parts | 2-year |
| Phase - Heaters | 1 |
| Pool Type | Above Ground |
| Product Dimensions | 22.6 " x 21.4 " x 30.3 " |
| Product Height | 22.6 in |
| Product Length | 30.3 in |
| Product Weight | 100 lb |
| Product Width | 21.4 in |
| Rear Clearance - Heaters | 6" |
| Refrigerant | Yes |
| Series Heaters | H-Series |
| Shipping Dimensions | 27.3 " x 25 " x 37 " |
| Shipping Weight | 117.5 lb |
| Side Clearance - Heaters | 12" |
| Silent Mode | No |
| Sub Brand | N/A |
| Voltage - Heaters | 120V |
Manuals
Questions & Answers
15 answered question(s)
Please log in to submit a question.
Q: I am replacing a Hayward 150 BTU with the H 135 - will it require any natural gas modifications?
By Hayward Support
Q: Hi I just got this h135 gas heater installed today Question as other When I turn the pump off and put heater in standby mode it says lo error Should I also turn off the electrical supply
By Hayward Support
Q: I just installed this heater. I have the heater and the pump on the same power circuit and I have a wifi controller to turn the pump on according to a schedule. Is it ok to turn the heater and pump on and off at the same time? This would be twice a day for power to be removed from the heater and pump at the same time. Do I need to leave the heater on and just turn the pump on and off?
By Hayward Support
Q: I am 2500 feet elevation. Will this heater work for me?
By Hayward Support
Q: I have a Hayward H series Induced Draft pool/spa heater Model H4001D1 serial # 00e33297. Can I still get parts to repair this heater?
By Hayward Support
Q: When winterizing the heater besides making sure it free from any residual water what is the recommendation for protecting the power cord? I live in Buffalo NY.
By Hayward Support
Q: How long is the power cord?
By Hayward Support
Q: How much is this heater
By Hayward Support
Q: what size natural gas line do I need ?it will sit 60 feet from the main supply
By Hayward Support
Q: What size of pool is this good for?
By Hayward Support
Q: I have a 23,500 gallon above ground pool and would like a heater. Would this one be sufficient?
By Hayward Support
Q: Heat exchanger without header assembly
By Hayward Support
Q: Besides draining/winterizing my heater, do you recommend covering the heater during winter? I live in Michigan.
By Hayward Support
Q: Can you convert a used heater from natural gas to propane? What would a kit cost?
By Hayward Support
Q: Can you leave this heater out in a cold snowy winter or should you disconnect and bring it in?
By Hayward Support

