A heat pump moves heat and can usually provide heating and cooling. A furnace produces heat using gas or electricity and needs separate equipment for cooling. Compare the complete installation and your utility costs, rather than choosing from equipment labels alone.
Replacing heating equipment is a chance to consider how the whole home should work in winter and summer. The useful comparison is between two properly sized, fully specified systems for your property—not an isolated furnace price and a heat-pump headline.
Compare the jobs each system can do
An air-source heat pump transfers heat between indoors and outdoors. A furnace supplies warm air from a heat source; a gas furnace also needs combustion air and venting. A ducted home may use shared distribution for heating and cooling, while ductless heat pumps serve spaces without conventional ducts.
| Question | Heat pump | Furnace |
|---|---|---|
| Heating method | Moves heat using electricity | Produces heat from fuel or electric resistance |
| Summer cooling | Usually provided by the same system | Requires separate cooling equipment |
| Distribution | Ducted or ductless options | Typically ducted warm air |
| What to assess | Electrical supply, sizing, placement, distribution | Fuel or electrical supply, venting where applicable, sizing, distribution |
Reference: ENERGY STAR: air-source heat pumps
Start with the home’s actual needs
Bring a list of uncomfortable rooms, your current equipment and any planned changes such as an addition or insulation work. Ask how heating and cooling loads will be assessed, whether existing ducts are suitable, and how noise and outdoor-unit placement will be handled.
A larger unit is not automatically better. Installation quality and distribution affect comfort. An upgrade that leaves major duct problems unaddressed may not deliver the experience the equipment specification suggests.
Reference: U.S. Department of Energy: furnace efficiency and installation
Ask for a complete scope and running-cost assumptions
Compare equipment, controls, electrical work, duct changes, installation, applicable permits and disposal in the written scope. Ask what is included and what remains an allowance. Existing electrical service capacity is a question to assess, not an automatic reason to require a panel upgrade.
Running costs depend on equipment performance, local gas and electricity rates, settings and the home. Ask which tariff and usage assumptions underpin any savings projection. Rebates and eligibility change; confirm current program terms before making them part of your budget.
Questions to bring to CMP
For a San Jose heating discussion, explain whether you need cooling as well as heat and whether you want to retain gas service. Ask about equipment access, maintenance and the effect of any future project. If the existing system is failing, distinguish the immediate repair decision from a planned replacement. A clear scope lets you compare proposals that solve the same problem.
- How will sizing be determined?
- Can the existing ducts and electrical supply support the proposed system?
- What control and filtration changes are included?
- Which work and approvals are included in the quote?
Common questions
Can a heat pump replace a furnace?
Often, but the distribution, electrical supply and heating load need assessment. Some homes use a dual-fuel arrangement; the right configuration depends on the property.
Will switching always reduce my bill?
No savings amount is universal. Compare the proposed equipment and your actual utility rates and usage before relying on a projection.
Plumbing, heating, air conditioning and electrical service for San Jose homes and businesses. Get to know CMP.
This guide covers general observations and planning. Equipment instructions and an on-site assessment determine the appropriate work for your property.