Award Winning Exhaust Air Heat Pump
The Energy Saving Awards - 2024
Domestic Energy Saving Product
HVR Awards - 2024
Heat Pump Of The Year
- Product information
- Advantages
The S735 provides heating, domestic hot water and ventilation in one compact unit. All requirements for compliance with new build regulations are achieved from one single point of install & access, without any requirement for an outdoor unit.
Due to its design, with the water connections on the bottom and ductwork on top, the unit is easy to install, saving time and cost. There are no R290 siting issues due to the unique design therefore there are fewer complications for system designers. The unit can slot into existing property designs without compromise.
Quiet Mark certified - one of the quietest heat pumps in its class. With an incredibly low noise level, as certified by Quiet Mark, the independent global certification programme associated with the UK Noise Abatement Society charitable foundation. This means minimal disturbance for the homeowner when the unit is running.
Natural R290 refrigerant means the unit is future proofed as the R290 refrigerant produces less CO2 than previous F-gasses, helping to meet Net Zero targets.
INTEGRATED SOLUTION
Our compact indoor solution for the provision of heating, hot water, and ventilation.
NATURAL REFRIGERANT
R290 refrigerant for reduced environmental impact.
PERFORMANCE
Combining ventilation heat recovery with heath pump technology to deliver high seasonal performance and economic operation
SMART VENTILATION
Smart ventilation based on temperature, humidity and CO2 levels with myUplink smart home
EXCEPTIONALLY QUIET OPERATION
New design for low noise level, 49dB(A) nominal sound power level
- Technical Data
- Documents
Advanced functions
With our wide range of accessories, the heat pump can offer a wide range of functions for heating, ventilation and solar electricity production. Click on the “Accessories” tab above to read more about the different accessories offered.
NIBE Smart Price Adaption
With Smart Price Adaption (SPA)*, the heat pump will monitor the prices on the Nordic NordpoolSpot electricity trading exchange and can reduce the variable electricity cost of your electricity bill by 5–10%. The heat pump then works the most when the electricity costs the least, and vice versa. To activate the function, you need to be connected to myUplink and have a variable rate electricity contract per hour. Your heat pump gets information on the electricity prices for the coming 24-hour period and then adjusts its operation based on the price and your expected heating and hot water needs. *Requires a variable hourly rate electricity contract
Integrated hot water heater
The hot water heater built into the heat pump is insulated with environmentally friendly foam for minimal heat loss. Accessories for larger hot water volumes can be connected.
High hot water capacity
Provides up to 264 litres of 40 degree water.
WiFi/myUplink
Using the Internet and the myUplink app, you get a quick status overview of the heat pump and the heating in your home. This flexible solution enables you to easily monitor and control heating and hot water production. In the event of a malfunction in the system, you will promptly receive a push notification and e-mail notifying you of this. With myUplink, you can use the smart services Weather Forecast Control for more even heating and operation, and Smart Price Adaption*, in order to further reduce energy costs. You can automatically receive ongoing software updates for optimal operation and the latest features. The WiFi connection also enables you to connect the heat pump to your already smart home. *Requires variable hourly rate contract
Natural refrigerant
The refrigerant moves energy in the form of liquid or gas in the heat pump. This heat pump works with a natural refrigerant that has a very low GWP (Global Warming Potential) value, for a sustainable climate and nature footprint.
User-friendly
The heat pump has a touchscreen with a colour display, intuitive interface and built-in intelligence. Using a heat pump has never been easier. With the myUplink app, it becomes part of your smart home and makes your everyday life easier. Voice control with Google Home is just one example. The design is Scandinavian and stylish and the door opens with a simple push.
Low noise level
Designed to give off little noise.
Height (mm)
2025
Width (mm)
600
Depth (mm)
620
Net weight (kg)
200
Product efficiency class room heating, 35 °C
A+++
Product efficiency class room heating, 55 °C
A++
System efficiency class room heating, 35 °C
A+++
System efficiency class room heating, 55 °C
A++
Efficiency class water heating
A
Refrigerant volume, CO² equivalent (ton)
0,0009
Declared tap profile
XL
This product is Quiet Mark certified
NIBE is proud to have received Quiet Mark certification for this heat pump, recognizing its exceptional low-noise performance. Quiet Mark is an internationally recognized certification awarded to products that meet rigorous standards for noise reduction, ensuring quieter and more comfortable living environments.
Learn more about our Quiet Mark certificationRelated Products
Smart Accessories
Our S-Series range is designed to be combined with our smart home accessories.
myUplink
Our S-Series range is designed to be used with myUplink, giving you the ability to further improve your indoor comfort whilst consuming less energy.