Bosch + NavienInverter heat-pump comfort. Navien’s variable-capacity gas heat.
A Bosch IDS Edge heat pump handles electric heating and summer cooling. A Navien NPF hydro-furnace supplies gas-fired heat with finely adjustable output. Comfy brings them together with the communication kit, controls, airflow and filtration the installation needs.
The thermostat manages the change between heat sources using the settings chosen for the installation. You choose the comfort temperature.
01
Electric heating
The inverter-driven heat pump varies its output as demand changes, moving outdoor heat inside within the selected system’s operating range.
02
Gas-fired heating
The NPF hydro-furnace provides heat when the controls call for it. Its role depends on the home’s heating demand, outdoor conditions and configured changeover settings.
03
Summer cooling
The same heat pump reverses operation to move warmth out of the house. The indoor coil and blower deliver cooling through your ductwork.
A changeover point chosen for your home.
We consider winter capacity, comfort priorities, electricity and fuel rates, and the control setup. Automatic switching does not mean live utility-price optimization. Operating savings depend on the system, weather, rates and use.
The equipment, explained
Navien NPF hydro-furnace
The NPF burns natural gas or propane to heat an internal water circuit. A hydronic coil then transfers that warmth to the air moving through your ducts. The standard NPF is a space-heating furnace; it does not supply domestic hot water.
Its 15–100% variable-capacity operation and variable-speed blower help it adapt to changing demand. Installer-adjustable supply-air targets and airflow settings give us more ways to tune comfort. Outdoor reset is available with the appropriate sensor and setup.
The Bosch communication kit is included.
Our Bosch + Navien package includes Bosch communication accessory kit 8733983568. It provides the communication connection the IDS Edge outdoor unit needs when used with a suitable third-party indoor arrangement.
We configure coordinated heating, cooling and airflow, and verify the indoor coil, control sequence and refrigerant-safety requirements. The exact combination determines the available functions and published ratings.
Easy to live with
ElitePRO S1200. Your choice of black or white.
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 Comfy
Why we include an EIM
The 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.
The equipment, wiring, changeover settings and any optional accessories are checked together.
Included media filtration
Cleaner air starts with the right fit.
Every Comfy hybrid installation includes a media air cleaner, with no separate media-air-cleaner add-on charge. We select AprilAire or Dust Free options around the required airflow, available space and approved equipment-support arrangement.
Installation constraints may require a different media-filter product. When that happens, we’ll aim to select an alternative with equivalent filtration performance and suitable airflow.
Proper filtration helps keep air-side coils and heat exchangers cleaner and may reduce the need for costly cleaning. A filter’s performance and replacement interval depend on the selected product and the conditions in your home.
Taking care of your system
A little attention. A clear service plan.
Keep the equipment manuals and follow their maintenance schedule. Arrange professional service for both heating and cooling operation, even if one heat source runs less often.
Between visits
Check the media filter and replace it as directed.
Keep indoor supply and return grilles clear.
Keep leaves, debris and stored items away from the outdoor unit and service access.
Contact us about new noises, recurring alerts, leaks or rooms that stop staying comfortable.
During professional care
Check heat-pump operation, coils, airflow and electrical connections.
Inspect furnace operation, combustion, venting and condensate drainage as the manufacturer requires.
Inspect the NPF’s internal water-side components and any required water-quality or service items.
Check thermostat settings and the change between heat sources.
Media filtration protects air-side components. It does not replace combustion-side or water-side maintenance. Service and cleaning needs vary by model and operating conditions.
Understand your coverage
Installation warranty. Manufacturer protection.
These cover different things. Keep the written installation agreement, product warranty certificates, registration confirmations and service records together.
Comfy
3-year installation warranty
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.
Bosch IDS Edge heat pump
Eligible original purchasers in one- or two-family homes receive 10-year limited coverage for the compressor and internal components at the original installation location. Registration is not required for this term.
Accessories can carry different coverage. Labor, exclusions and other conditions are governed by the certificate. Read the Bosch IDS warranty
Navien NPF
For an eligible single-family installation, registration within 60 days provides 10-year limited internal functional-parts coverage and a limited-lifetime combustion heat-exchanger warranty. Base terms are 5 years for parts and 20 years for the combustion heat exchanger.
Enhanced terms apply to the original purchaser at the original location. Transfer reduces coverage to the base terms. Manufacturer labor coverage is 1 year, subject to prior approval and allowances. Accessories and filters are excluded. Read the NPF warranty
This is a residential overview, not the warranty contract. Commercial use, ownership changes, installation location, maintenance and product selection can change coverage. Thermostats, filters and communication accessories do not automatically inherit the furnace or heat-pump warranty.
Before you decide
Questions we hear.
Will this always cost less to operate than my current system?
There is no universal savings figure. We need the equipment’s performance, your current system, electricity and fuel prices, and how the home is used to make a meaningful comparison. A higher efficiency rating alone does not predict your bill.
How do you decide when the furnace takes over?
We compare the home’s heating demand with the heat pump’s output at winter temperatures and consider operating costs and comfort. We configure the changeover and lockout settings for the selected controls, rather than applying one temperature to every home.
Will the Navien NPF also heat my tap water?
No. The standard NPF uses an internal water circuit for space heating. It does not replace your domestic water heater. If you also need hot-water equipment, we can discuss that as a separate part of the project.
Will the gas furnace heat my house during a power outage?
The furnace still needs electricity for its blower, controls and other components. A hybrid system does not by itself provide heating during a power outage.
Can this fix rooms that are always too hot or cold?
New equipment may help, but duct sizing, return-air paths, insulation and room-by-room loads also matter. Tell us which rooms are uncomfortable so we can investigate the cause and include any needed work in the proposal.
Do I need to buy every optional smart accessory?
No. Optional room sensors, humidity or ventilation equipment and smart-home accessories depend on your needs and the compatible setup. Your proposal will make clear what is included and what is optional.
From the manufacturers
See the equipment in action.
Official product videos open on YouTube. They may show configurations or accessories beyond the package selected for your home.
We’ll look at your heating and cooling needs, ducts and airflow, gas and electrical service, venting, outdoor placement and installation access. Tell us about problem rooms, noise concerns and what you’d like your next system to do better.
Photos of the existing equipment and recent utility bills can help the conversation. Final equipment selection and a written scope follow the site assessment.
For installation and replacement projects. After entering your address in booking, choose “Free hybrid system consultation.” Repair and diagnostic visits are separate.
Bosch IDS Edge heat pump
Navien NPF hydro-furnace
