Lennox heat pump

MLB012S4S-1P

Name: Lennox MLB012S4S-1P heat pump combinations
Creator: Installed Cost

M series

3 tracked programs have AHRI-linked equipment records.

Eligibility belongs to the complete outdoor-and-indoor combination—not just this outdoor model. Check the AHRI reference and indoor model in the table before relying on a result.

Check this complete system in Connecticut

AHRI links below are discovery evidence. They do not compare every model suffix or required component. Use the guided check for a full equipment comparison.

12documented combinations

19.5–25.5SEER2 range

10–10.4HSPF2 range

1.8–1.96COP at 5°F range

AHRI-linked program records

Colorado

Xcel Energy Colorado Heat Pump Rebates

12 AHRI-linked records.

Published source date Mar 1, 2026. Metadata reviewed Jul 29, 2026.

Maine

Efficiency Maine Residential Heat Pump Rebates

7 AHRI-linked records.

Published source date Jul 16, 2026. Metadata reviewed Jul 29, 2026.

Wisconsin

Focus on Energy Heat Pump Instant Discounts

12 AHRI-linked records.

Published source date Jun 18, 2026. Metadata reviewed Jul 29, 2026.

Certified combinations

Showing 1–12 of 12. Performance values are combination-specific.

AHRI reference	Indoor unit / coil	Furnace	SEER2	HSPF2	COP at 5°F	Capacity at 5°F	AHRI-linked list records
207683521	MWMC012S4-1P	None published	25.5	10.4	1.8	12,000 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
210665628	MWMC012S4*	None published	25.5	10.4	1.8	12,000 Btu/h	Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
211034441	MWMC012S4-*P	None published	25.5	10.4	1.8	12,000 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
207683528	MFMA012S4-1P	None published	23.6	10	1.89	12,000 Btu/h	Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
210665637	MFMA012S4*	None published	23.6	10	1.89	12,000 Btu/h	Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
211034450	MFMA012S4-*P	None published	23.6	10	1.89	12,000 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
207683532	M22A012S4-2P	None published	22.3	10.2	1.89	11,300 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
210665643	M22A012S4*	None published	22.3	10.2	1.89	11,300 Btu/h	Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
211034456	M22A012S4-*P	None published	22.3	10.2	1.89	11,300 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
207683525	MMDB012S4-2P	None published	19.5	10	1.96	12,100 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
210665632	MMDB012S4*	None published	19.5	10	1.96	12,100 Btu/h	Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates
211034445	MMDB012S4-*P	None published	19.5	10	1.96	12,100 Btu/h	Efficiency Maine Residential Heat Pump Rebates Focus on Energy Heat Pump Instant Discounts Xcel Energy Colorado Heat Pump Rebates

What this result does not prove

A product-list match does not establish household, property, contractor, sizing, weatherization or remaining-funding eligibility. Installed Cost never states a rebate dollar amount. Follow the official program link for the current application rules and calculator.

Specifications reflect source records last updated Aug 13, 2026. ENERGY STAR is a registered certification mark; its name is used only to identify the federal source. Installed Cost is not endorsed by ENERGY STAR or AHRI.