Pentair | 461112 | ETi 250 High-Efficiency Natural Gas Pool Heater, 250K BTU
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The Pentair 461112 is an ETi 250 high-efficiency natural gas pool and spa heater rated at 250,000 BTU. It uses a condensing design that extracts additional heat from the flue gases, which is what separates it from a standard MasterTemp.
Features
- 250,000 BTU output for mid-size and larger pools
- High-efficiency condensing design recovers heat that a standard heater sends out the flue
- Corrosion resistant heat exchanger built for demanding water chemistry
- Low NOx certified combustion
- Digital control interface with diagnostics
- Connects to Pentair automation systems
- Lower fuel cost per BTU delivered than a conventional gas heater
Specifications
- Brand: Pentair
- Manufacturer part number: 461112
- Heating capacity: 250,000 BTU
- Fuel: Natural gas
- Series: ETi 250, high-efficiency condensing
- UPC: 788379877491
Frequently Asked Questions
What makes the ETi 250 different from a MasterTemp 250?
The ETi is a condensing heater. It pulls extra heat out of the exhaust instead of venting it, so it burns less gas for the same water temperature. The tradeoff is a higher purchase price and a condensate drain requirement.
Is the ETi 250 a heat pump?
No. It is a gas fired heater. Pentair's hybrid units that pair a heat pump with gas are the UltraTemp ETi models, which are different products.
Should I choose the ETi 250 or the ETi 400?
250K suits mid-size pools on a normal schedule. Step to the 461113 at 400K for a large pool, a spa you want hot fast, or a colder climate.
What size pool does 250,000 BTU suit?
Mid-size to larger in-ground pools. Sizing depends on surface area, temperature rise, and climate, so have a pool professional size it for your install.
Is it worth the extra cost over a standard gas heater?
It depends on how much you run it. Heavy users in cold climates recover the difference through lower gas bills. Occasional users on a mild-climate pool often do not.
Does it need professional installation?
Yes, and more so than a standard heater. Condensing units need a condensate drain and specific venting in addition to gas sizing and electrical.
Sold by AppaeTech Pool Supply, an authorized Pentair reseller.