The short answer
Dual-fuel heating combines an electric heat pump with a fuel-fired heating system, commonly a gas furnace. A coordinated design determines when each operates; two appliances installed together are not automatically a properly integrated system.
Define why you want two heat sources
Explain whether the objective is summer cooling, retaining a suitable furnace, changing operating costs or improving winter comfort. Ask the designer to compare a dual-fuel scope with an all-electric option where appropriate. Avoid assuming that retaining old equipment is always the least expensive overall choice.
Check equipment and controls together
Bring model numbers for the furnace, thermostat and any existing cooling equipment. Ask who confirms compatibility and programs the operating sequence. The homeowner handover should explain the normal modes, the backup arrangement and the contact for a fault without expecting you to adjust installer settings.
Put the assumptions in the quotation
Request the proposed equipment combination, required duct changes, electrical scope and any gas or venting work. Ask how cost comparisons were calculated using fuel rates and household use. Do not treat an advertised efficiency or rebate amount as a guaranteed saving for your home.
Think beyond the equipment room
Tell Robert about planned renovations or future changes to hot water and cooking. If gas appliances remain, the property still has gas-system responsibilities. For a strata property, identify approvals for outdoor placement and access before confirming the project schedule.
Prepare for your assessment
- Existing furnace and thermostat models
- Reason for retaining gas heat
- Outdoor-unit location options
- Current bills and renovation plans
Common questions
Is my existing furnace automatically compatible?
No. The proposed equipment combination, airflow and controls require assessment.
Does dual fuel keep heating during a power outage?
Do not assume so. Fans and controls generally require electricity; an outage plan is a separate electrical-design question.
Continue planning
Sources & further reading
Speak with Robert Hamilton at BeeWarm about your property and confirm availability, qualifications and the accepted scope. Find your Lower Mainland service area.
Published October 8, 2026 by BeeWarm. General planning guidance, not an installation procedure. Exact requirements depend on the equipment, property and authority.