
Lochinvar EnergyRite ERN-402 Pool Heater, 400K BTU, Natural Gas, 100143232
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Quick overview
- 400K BTU A 400,000 BTU input heater, sized for larger residential and light commercial bodies of water.
- Natural gas Built for natural gas. It is not a propane unit and gas type cannot be assumed at the meter.
- Electronic ignition No standing pilot to relight, the heater lights on demand.
- Digital controls Setpoint and status are read and set from a digital control panel.
- Indoor or outdoor Rated for either installation, so venting and clearances follow the manual for the location you choose.
- Elevation limit Rated for 0 to 2,000 ft. Above that range the unit needs a different rating, and this is a hard limit rather than a suggestion.
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EnergyRite ERN-402 Pool Heater, 400K BTU, Natural Gas, 100143232
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Product details
The Lochinvar ERN-402 is a 400,000 BTU natural gas pool heater from the EnergyRite family, supplied under part number 100143232. It uses electronic ignition and a digital control panel, and it is rated for indoor or outdoor installation.
What the 400K rating buys
Input rating is what decides how quickly a body of water comes up to temperature and how well it holds that temperature against cool nights and wind. At 400,000 BTU this is a serious heater, aimed at larger residential pools and light commercial water rather than a small backyard pool, where a smaller unit would be the better match.
Controls and ignition
Electronic ignition means there is no standing pilot burning fuel between calls for heat and nothing to relight after a windy night. The digital panel gives you a readable setpoint and a clear status, which makes diagnosing a fault far quicker than reading a mechanical thermostat and a pilot flame.
Plan the installation before you order
Three things decide whether this heater suits your site. It is the natural gas version, so confirm the gas type at the meter. It is rated for 0 to 2,000 ft. of elevation, and that ceiling is firm. And it should be connected by a licensed gas fitter, who will size the gas line, verify supply pressure and set up venting for an indoor or outdoor location.
| Brand | Lochinvar |
|---|---|
| Manufacturer part number | 100143232 |
| Model | ERN-402 |
| Family | EnergyRite |
| Type | Gas pool heater |
| BTU rating | 400K |
| Gas type | Natural Gas |
| Ignition | Electronic |
| Controls | Digital |
| Installation location | Indoor/Outdoor |
| Elevation | 0 to 2,000 ft. |
| Shipping weight | 240 lb |
| Ships | Freight |
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Questions and answers
What people ask about this product, answered by our pool techs.
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