The homeowner field manual

Heat-pump planning guides

Compare heat pump capacity, configuration, efficiency, climate performance, duct needs, and backup options before choosing a system for your home.

Heat-pump equipment data sheet and three efficiency indicators

Choosing a System

SEER2, HSPF2, and COP: Heat Pump Ratings Explained

SEER2 and HSPF2 summarize a test season; COP describes one condition. Use them with low-temperature capacity, matched-system data, loads, rates, and installatio...

Updated October 21, 2026

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Ducted supply register and ductless indoor unit shown side by side

Choosing a System

Ducted vs. Ductless Heat Pumps: How to Choose for Your House

Ducted and ductless heat pumps can both work well. The better fit depends on room layout, existing ducts, zoning, filtration, appearance, climate data, and inst...

Updated October 21, 2026

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Control junction linking a heat pump with a backup furnace

Choosing a System

Dual-Fuel Heat Pump Guide: Controls, Costs, and House Fit

Dual fuel pairs an electric heat pump with a fuel-fired furnace. The value depends on house loads, equipment matching, control logic, utility rates, and homeown...

Updated October 21, 2026

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Raised cold-climate heat pump with a thermometer and performance sheet

Choosing a System

Cold-Climate Heat Pump Buying Guide

A cold-climate label is a useful screen, not a house-specific design. Compare low-temperature capacity and efficiency with your load, backup strategy, and winte...

Updated October 21, 2026

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Home floor plan and measurements used for a heat-pump load calculation

Choosing a System

What Size Heat Pump Do I Need? A Load-Based Guide

Heat-pump size should come from a load calculation and climate-specific performance data, not floor area alone. Learn what evidence to ask for.

Updated October 20, 2026

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