Comfy all-electric system guide
An outdoor inverter heat pump and a matched Bosch air handler bring electric heating and summer cooling through your ducts. We help you compare the options, then build the plan around your home’s airflow, winter needs and electrical capacity.
Book an in-home consultationNew installations and existing-system replacements.
All-electric comfortHeating + cooling
First-year maintenanceIncluded
3-year ComfyInstallation warranty
Four ways to get Comfy
Every option uses an inverter-driven outdoor compressor that adjusts output as demand changes. The indoor air handler, available efficiency and cold-weather capability vary by family.
SEER2 measures seasonal cooling efficiency. These are manufacturer-advertised maximum ratings, not a rating for every size or a prediction of your bills. Actual performance depends on the exact matched equipment, installation and operating conditions. Current model revisions and availability are confirmed in your proposal.
A closer look at IDS Ultra
Bosch advertises up to 100% heating capacity down to 5°F at a coefficient of performance (COP) of 2.1, with the ability to initiate heating down to −13°F. These are manufacturer product claims under stated conditions; the precise matched system’s performance data guides our design.
Ultra’s enhanced vapor-injection compressor supports its low-temperature performance. Its dedicated indoor air handler uses a four-stage motor and is selected with the outdoor unit as a matched system.
What sits inside your home
The indoor coil exchanges heat with the air, and the blower moves that air through your ducts. An air handler does not burn fuel. Optional electric resistance heaters can provide supplemental heat when properly selected and configured.
The BIVA20 family is used for IDS Plus and Premium Connected combinations. Its multi-speed, constant-torque ECM blower is configured for two-stage operation; it is not a continuously variable-speed indoor blower.
IDS Ultra uses its own matched air-handler family, with a four-stage motor. It is different from the regular BIVA20 used with Plus and Premium Connected.
Manufacturer product images: Bosch Home Comfort. BIVA names identify the families shown in Bosch’s product information. Newer engineering documents also list BIVB revisions. These are not a promise of interchangeability: we verify the exact outdoor/indoor model pair, approved ratings, refrigerant requirements and controls before quoting.
We check heating and cooling loads, duct sizing and return paths, electrical service, equipment placement, condensate drainage and access for maintenance. The R-454B systems described here must follow their specified installation and refrigerant-safety requirements.
Comfort through the seasons
The heat pump moves heat from outdoor air into the house. It can run for longer periods at lower output rather than repeatedly starting and stopping at full capacity.
Operation reverses to move heat out of the home. Proper airflow and setup help the system cool and remove moisture through the indoor coil.
When specified, electric heat can assist at cold conditions or during defrost, according to the equipment and control design. Its use affects electricity demand and operating cost.
The outdoor coil may periodically clear frost. Brief steam, water and changes in sound can be normal during defrost. Contact Comfy if the unit stays heavily iced, comfort drops or alerts recur; do not chip ice off the coil.
Comfy’s recommended controls
The 5-inch touchscreen keeps daily adjustments simple. The First Alert app supports scheduling, remote control and alerts. Optional compatible room sensors can help the controls respond to the spaces you care about.
Matter supports integration with Apple Home, Google Home and Amazon Alexa. Wi-Fi, internet, apps and a compatible Matter controller or hub may be needed; available functions depend on the platform and setup.
“The S1200 has proven versatile and reliable in our installations, and we have not experienced any issues with it.”
Our experience at ComfyThe equipment interface module connects at the heating and cooling equipment. RedLINK 3.0 handles wireless communication with the thermostat; two suitable existing wall wires can supply 24-volt power, which may avoid pulling a new cable through finished walls.
Compatible humidity and ventilation accessories are selected and configured separately. Equipment and wired accessories still need local wiring.
We verify compatibility, wiring and supplemental-heat staging for the selected Bosch system. Your proposal defines the included controls and accessories.
Filtration & equipment support
Comfy selects media-filtration options around the required airflow, available space and equipment-support arrangement. AprilAire or Dust Free may suit the installation; site constraints can call for an alternative with comparable filtration performance and suitable airflow.
Proper filtration helps keep the indoor coil and other air-side components cleaner. It does not replace professional maintenance or guarantee an indoor-air-quality outcome.
Your written proposal identifies the air cleaner, controls and accessories included in your project.
Care from the start
Comfy includes first-year maintenance with your new installation. Your written agreement defines the service scope and scheduling. Keep your equipment manuals and follow the manufacturer’s maintenance instructions between visits and in later years.
This is general care guidance, not a promise that every listed task or replacement part is included in each service visit. Maintenance and the installation warranty have separate scopes.
Understand your coverage
Keep the written installation agreement, product warranty certificate, registration confirmation and maintenance records together.
Comfy provides a 3-year installation warranty. Your installation agreement explains its scope and exclusions.
This does not mean every part, labor charge or future repair is covered for three years.
Eligible original purchasers in one- or two-family homes receive 10-year limited coverage for the compressor and factory-installed internal components at the original installation location.
Registration is not required for that standard parts term. Proper installation and maintenance, exclusions and other conditions apply.
The factory gateway assembly has a 2-year term; field-installed accessories generally have a 1-year term under the certificate.
Registration within 90 days enables only the specified 90-day labor allowance, subject to its schedule and claim rules. It does not provide 10 years of labor coverage.
Thermostats, filters, routine maintenance, refrigerant and installation workmanship do not automatically share the main parts warranty.
This is a residential overview, not the warranty contract. Commercial or multifamily applications, ownership changes and other circumstances can have different terms. Consult the certificate that applies to your exact equipment.
Before you decide
That starts with your heating and cooling loads, ductwork, electrical capacity, budget and comfort priorities. We compare the exact matched system’s performance at local winter conditions. The highest cooling-efficiency number is not automatically the best fit for a heating-focused project.
Indoor-equipment reuse is a compatibility question, separate from whether the ducts can stay. The outdoor unit, coil, blower, refrigerant, safety requirements and controls must form an approved match. Ultra requires its dedicated air-handler family for the combinations described here.
No. An all-electric design can include electric resistance heat. We determine its need, size and control sequence from the home’s heating demand, low-temperature heat-pump output and defrost requirements.
No universal savings figure applies. Electricity and fuel prices, weather, your current equipment, the building and how the system is used all affect cost. Ratings and rebates are not a substitute for a home-specific comparison.
The heat pump, air handler, controls and electric heaters need power. An all-electric system does not by itself provide heating during an outage.
Comfy recommends the S1200 with an equipment interface module and selects filtration around the installation. Your proposal identifies the exact included equipment, controls, accessories and additional electrical or duct work. Ask us to walk through it with you before you approve the project.
Learn more from Bosch
Manufacturer resources help explain the equipment. Your proposal and the current technical documents establish your exact system.
Bosch’s technical walkthrough of the R-454B Premium Connected heat pump. Written for technicians; installation work belongs with a qualified professional.
Watch the official videoBosch Home Comfort USA · YouTubeIDS Ultra technical deep diveBosch’s technical training on IDS Ultra and its communication setup. Product documents and professional design still govern your installation.
Watch the official videoYour in-home consultation
Tell us about uncomfortable rooms, noise concerns and how the current system handles winter. We’ll look at the ducts, indoor and outdoor placement, electrical service and the work needed for a complete installation.
215-410-5577
jennifer@comfyphilly.com
Comfy serves Philadelphia and selected Pennsylvania suburbs. We do not service New Jersey.
Manufacturer information checked October 8, 2026. Images show product families; your proposal identifies the exact equipment.
Start with an in-home heat-pump consultation.
For installation and replacement projects. Repair and diagnostic visits are separate.