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Solar boiler accessories are used for installation, control, protection and connection of solar thermal systems. This includes solar pump groups, differential controllers, solar fluid, expansion vessels, solar hoses, roof hooks, mixing valves and connection components.
At Hewa, you will find accessories for solar boiler systems, solar collectors and complete solar boiler sets. When selecting the right components, check system pressure, temperature load, pipe diameter, control setup, sensor placement, roof mounting, solar fluid and compatibility with the boiler, buffer tank and collector field.
Brands
OEG 512200106 - Solar circulation pump DN20 (130 mm, with PWM control)
Item no. 342113EAN 4055668004378
Price excl. VAT€ 140,46Price incl. VAT€ 169,95
In stock
Added
BONFIX 81701 - PTFE Sealing Cord FittingFix
Item no. 111701EAN 8717845817019
Price excl. VAT€ 25,60Price incl. VAT€ 30,98
In stock
Added
Bonfix 52805 - Inlet combination valve (8 BAR) 15 mm compression
Item no. 119482EAN 8717845528058
Price excl. VAT€ 20,00Price incl. VAT€ 24,20
In stock
Added
Varem R8018241S4000000 - Solar expansion vessel (18L)
Item no. 468018EAN 8721225900723
Price excl. VAT€ 49,55Price incl. VAT€ 59,95
In stock
Added
Corrugated solar hose DN16 - Connection set 3/4"
Item no. 251882EAN 4036917043515
Price excl. VAT€ 20,62Price incl. VAT€ 24,95
In stock
Added
OEG KSW - Differential controller with 4 TF/PT sensors
Item no. 340085EAN 8721225900716
Price excl. VAT€ 206,61Price incl. VAT€ 250,00
Op nalevering
Added
OEG 512245033 - Solar station with solar circulation pump PWM
Item no. 345033EAN 4023854910293
Price excl. VAT€ 363,60Price incl. VAT€ 439,95
In stock
Added
Pentec Duco Mix 15C - Mixing valve 15 mm compression
Item no. 429001EAN 8717065023432
Price excl. VAT€ 33,02Price incl. VAT€ 39,95
In stock
Added
Solar flat roof mounting frame – Mounting system for solar collectors
Item no. 502949EAN 8721225900709
Price excl. VAT€ 99,13Price incl. VAT€ 119,95
Op nalevering
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Solar Dachhaken – Montagehaken für Sonnenkollektoren auf Ziegeldächern
Item no. 502948EAN 8721225900693
Price excl. VAT€ 5,00Price incl. VAT€ 6,05
Op nalevering
Added
OEG KSW-E - Differential controller with 2 TF/PT sensors
Item no. 342222EAN 8721082877640
Price excl. VAT€ 134,67Price incl. VAT€ 162,95
In stock
Added
PANOSOL roof hooks for solar collectors – set of 6
Item no. 254031EAN 8721082583492
Price excl. VAT€ 24,00Price incl. VAT€ 29,04
In stock
Added
PANOSOL Solar spiral pipe DN16 with sensor cable – double – per metre
Item no. 252148EAN 211723948
Price excl. VAT€ 14,46Price incl. VAT€ 17,50
In stock
Added
PANOSOL Solar pump group S5 - for residential solar systems
Item no. 259842EAN 8721082877718
Price excl. VAT€ 202,48Price incl. VAT€ 245,00
Op nalevering
Added
PANASOL Solar Antifreeze Fluid (10 litres)
Item no. 250110EAN 1249938522493
Price excl. VAT€ 48,76Price incl. VAT€ 59,00
In stock
Added
Pentec Duco - Inlet combination valve 15 x 15 mm (6 BAR)
Item no. 428399EAN 8717065000570
Price excl. VAT€ 18,97Price incl. VAT€ 22,95
In stock
Added
OEG 512234155 - Automatic air vent with service valve G 1/2" M
Item no. 344155EAN 47241294483721
Price excl. VAT€ 7,40Price incl. VAT€ 8,95
In stock
Added
Selecting solar boiler accessories
Solar boiler accessories are used to build a solar thermal system correctly, protect it safely and control it properly. This category includes components such as solar pump groups, solar circulation pumps, differential controllers, solar fluid, expansion vessels, solar hoses, roof hooks, mixing valves, inlet combinations and safety components.
The correct choice depends on the system layout, collector field, storage tank, pipe length, operating pressure, temperature load and required control setup. For the complete context, also review solar collectors and solar boiler sets.
Important when choosing solar accessories
- Check whether the component is intended for the solar side, domestic water side or mounting side
- Match the solar pump group, circulation pump and differential controller to the collector field and storage tank
- Use suitable solar fluid that can withstand high temperatures and frost load
- Check expansion vessel, pressure relief, non-return provision, venting and system pressure
- Check pipe diameter, solar hose, sensor cable, insulation and maximum temperature load
- Select roof hooks or flat roof mounting based on roof type, collector position and support structure
- Have installation, connection and commissioning carried out by a qualified installer
Control, protection and mounting of solar boiler systems
Solar accessories largely determine how reliably a solar boiler system operates. A differential controller compares the temperature of the solar collector with the temperature in the storage tank and only activates the pump group when heat transfer is useful. The solar pump group then circulates the solar fluid through the collector field and heat exchanger.
Protection and mounting are also important. A solar expansion vessel absorbs volume changes in the solar fluid, while pressure relief, venting and non-return protection contribute to stable system operation. Roof hooks, flat roof supports and solar hoses must match the collector setup, roof structure, pipe route and technical requirements of the system.
Frequently asked questions about solar boiler accessories
What are solar boiler accessories used for?
Solar boiler accessories are used for mounting, control, protection, connection and maintenance of solar thermal systems with solar collectors, pump group and storage tank.
Which components belong to a solar boiler system?
Commonly used components include solar fluid, pump group, circulation pump, differential controller, sensors, expansion vessel, solar hoses, roof hooks, mixing valve, inlet combination and safety components.
Why is solar fluid important?
Solar fluid transfers heat from the collector to the storage tank and must withstand high temperatures and frost load. Always use a fluid suitable for solar thermal systems.
What is a differential controller used for?
A differential controller controls the solar pump group based on the temperature difference between the solar collector and storage tank. This means the pump only runs when sufficient heat can be transferred.
What should an installer check during installation?
Check collector setup, pipe diameter, solar fluid, pump group, control setup, sensors, expansion provision, safety protection, roof mounting, insulation, system pressure and the technical documentation of all components.