Resideo L8148E1265/U Aquastat RelayResideo L8148E1265/U Aquastat Relay
Resideo L8148E1265/U Aquastat Relay
ResideoSKU: 156769

Resideo L8148E1265/U Aquastat Relay

$400.49
5.0 (1 review)
In stock (15)

The L8148E1265/U is an immersion-type Aquastat relay designed for oil-fired and gas-fired hydronic heating systems. It integrates high-limit protection with relay switching for both burner and circulator motor control - the high-limit function interrupts the burner circuit exclusively. Rated 120 VAC with a 180-240F operating range and 15F fixed differential. Includes Molex plug for use with an electronic vent damper. Vertical mount; 1-1/2 to 3 in. insulation depth capacity. Requires professional installation by a licensed HVAC or plumbing technician.

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays.

More Details

Product overview
  • High-limit burner interrupt - relay switching opens burner circuit exclusively at the high-limit setpoint; circulator motor controlled independently
  • Operating range: 180-240F with 15F fixed differential
  • 120 VAC supply voltage; vertical mount
  • Includes Molex plug for use with electronic vent damper
  • Insulation depth: 1-1/2 to 3 in. capacity
  • Immersion-type sensing via copper bulb well
  • Requires 24 VAC thermostat with heat anticipator set at 0.2A
Specifications
Manufacturer Part Number L8148E1265/U
UPC 85267055215
Overall Dimensions 4-3/4 in W x 1-1/2 in D x 3-3/4 in H
Material n/a
Domestic or Import n/a
End Style n/a
Type n/a
ADA Compliance n/a
Warning Professional installation required
Standards and Approvals UL Listed (models with well): File No. MP466, Guide No. MBPR | CSA Certified: File No. LR95329-1
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: July 3, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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