Solar thermal systems for domestic hot water and heating support
Solar thermal energyHeat from free solar energy
Heat straight from the sun
A KWB solar thermal system converts sunlight directly into useful heat. On sunny days, it can provide plenty of domestic hot water, while surplus energy is stored in the buffer storage tank and can also be used to support the heating system.
Cleaner heating with a hybrid system
The roof-mounted collectors are perfectly matched to the boiler and storage components, creating a highly efficient complete system. A photovoltaic system can also be added with ease. Solar thermal energy can be integrated equally well into a hybrid heating system, allowing renewable and conventional energy sources to work together effectively.
Give your hot water the power of the sun
KWB EasySun
- Solar thermal system for domestic hot water
- Quality collectors from a global market leader
- Covers up to 60% of domestic hot water requirements
- Flexible mounting sets for portrait or landscape installation
Hot water powered by the sun
The KWB EasySun solar thermal system can cover up to 60% of the domestic hot water requirements of an average household, significantly reducing fuel consumption. Even on less sunny days, KWB EasySun continues to support the heating system and helps lower heating costs over the long term.
Quick installation on virtually any roof
Up to three KWB EasySun collectors are usually installed and can be mounted in either portrait or landscape orientation. Special roof hooks are used on roofs with plain tiles or interlocking tiles, while hanger bolts provide secure mounting on flat roofs and other roof types.
KWB MultiSun
- Solar thermal system for heating support
- Quality collectors from a global market leader
- Covers up to 40% of total heat requirements
- Flexible mounting sets for portrait or landscape installation
Use solar energy to reduce pellet consumption
Over the course of a year, KWB MultiSun can cover up to 40% of the total heat requirement. When correctly sized, it may provide the complete heat supply during summer and the transitional seasons. This noticeably improves the efficiency of the heating system, reduces pellet consumption and wear, and helps extend the system’s service life.
Simple installation, significant impact
KWB MultiSun solar collectors can be installed in either portrait or landscape orientation. Special roof hooks are used for roofs with plain tiles or interlocking tiles. On flat roofs and other roof types, the collectors are mounted securely using hanger bolts.
Premium quality for demanding applications
KWB solar collectors are manufactured in modern, robot-assisted series production. Every collector undergoes several stages of testing, including exposure to extreme weather conditions. The frame is produced with high-precision robotic technology, the absorber is manufactured using ultrasonic and laser welding, and a specialised bonding process ensures a permanently watertight construction.
Sizing guide for solar thermal systems
KWB solar packages |
Area [m²] |
Sizing guide |
Copper/corrugated pipe dimensions [mm] |
Storage tank selection |
|---|---|---|---|---|
EasySun 2 |
5,04 |
1–4 people |
15x1 (18x1) /16 |
EmpaTherm Solar 300 |
EasySun 3 |
7,56 |
2–6 people |
15x1 (18x1) /16 |
EmpaTherm Solar 300/500 EmpaWell 500 EmpaCompact 500 |
MultiSun 4 |
10,08 |
– |
18x1 (22x1) /20 |
EmpaCompact 800/1000 EmpaWell Solar 800/1000 |
MultiSun 5 |
12,60 |
– |
18x1 (22x1) /20 |
EmpaCompact 800/1000 EmpaWell Solar 1000/1500 |
MultiSun 6 |
15,12 |
– |
18x1 (22x1) /20 |
EmpaCompact 1000/1500 EmpaWell Solar 1000/1500 |
Configure your system in the product finder
Use the KWB product finder to create your KWB energy system, including a photovoltaic and battery storage solution, in just a few clicks.
Find the right solution. No obligation.
In a free initial consultation, our KWB experts will help you identify how clean, free solar energy can best be integrated into your energy system. They will assess your heating requirements and the space available in your property to determine which solutions are suitable.