Products
Solarstream heat pumps are your best mates in both hot and cold climates
Sometimes it’s the little things that matter most. Like a hot shower on a cold morning. Or your kids washed and ready for bed. Or a clean kitchen after a big cook up.
That’s why Siddons Solarstream heat pumps are designed to operate all year producing continuous hot water in both hot and cold climates, in both pouring rain and high humidity! With environmentally friendly features and no need for back up elements, Solarstream sets the standard in water heating.
Always reliable, the Solarstream is certain to become your best mate in hot water, as sure as night and day.
Our Heat Pumps – Choose your model
Siddons Solarstream heat pump water heaters come in convenient sizes to suit your lifestyle. All models are environmentally friendly and eligible for claiming Small-scale Technology Certificates (STCs).
264 litre stainless steel tank (264SSBD & 264SSCD)
The 264 litre model is ideal for your 1-3 bedroom house with less than 5 people. This model is the ultimate in energy efficiency and makes easy work of your hot water needs, delivering reliable hot water when you need it, as sure as night and day. The 264SSBD model uses a proven fluorocarbon gas whilst the 264SSCD uses a new ozone friendly hydrocarbon gas.
327 litre stainless steel tank (327SSBD* & 327SSCD)
The larger capacity 327 litre model is perfect for a 4-5 bedroom house with more than 5 people. The bigger tank is powerful in hot or cold climates no matter how long your family takes in the shower, as sure as night and day. 327SSBD* model uses a proven fluorocarbon gas whilst the 327SSCD uses a new ozone friendly hydrocarbon gas.
Glass Lined Steel Tanks
Glass lined steel tank versions of Siddons Solarstream Heat Pump Water Heaters are specifically designed for mineralised water. The wrap around condenser coil on the outside of the tank wall reduces problems with calcium build-up and other minerals in the water that become active at high temperatures.
Siddons Solarstream’s condenser coil delivers superior tank water stratification separating the hot water to the top and cold water to the bottom so you get hot water, not warm water. The condenser coil generates heat to the whole of the tank wall with excellent conduction through the tank wall rather than sharp concentrated heat inside the tank that attracts mineral build-up and retards heat transfer over time.
The heat pump has a larger evaporator and more powerful compressor to deliver better cold temperature performance and excellent heat recovery in all conditions without a backup element. There are four models available, 165, 261, 326 or 417 litres. The SMBD models use a proven fluorocarbon gas whilst the SMCD models use a new ozone friendly hydrocarbon gas.
Commercial Applications for heat pumps
Depending on your usage; we can combine 2 or more of our standard heat pumps models to handle your commercial, sporting or community hot water requirements.
Plus if you have an evacuated tube system and want to reduce the high winter power bills from its back-up electric element, simply connect one of our Solarstream heat pumps. It will cleverly shoulder the work and cut your winter water heating costs by up to 75%!
Download brochure. Download Owners Manual.
(* Previously known as 327SSAD)

| Tank Specifications: 264SSBD/264SSCD | |
| Capacity: | 264 litres |
| Height: | 1620mm |
| Diameter: | 580mm |
| Hot water outlet: | 1136mm |
| Cold water outlet: | 168mm |
| Cylinder dry weight: | 62 kg |
| Tank Specifications: 165SMBD/165SMCD | |
| Capacity: | 165 litres |
| Height: | 1605mm |
| Diameter: | 487mm |
| Hot water outlet: | 1410mm |
| Cold water outlet: | 190mm |
| Cylinder dry weight: | 60 kg |
| Tank Specifications: 326SMBD/326SMCD | |
| Capacity: | 326 litres |
| Height: | 1755mm |
| Diameter: | 620mm |
| Hot water outlet: | 1535mm |
| Cold water outlet: | 215mm |
| Cylinder dry weight: | 90 kg |
| Heat Pump Specifications | |
| Weight: | 39 kg |
| Length: | 795mm |
| Width: | 255mm |
| Height: | 540mm |
| Tank Specifications: 327SSBD*/327SSCD | |
| Capacity: | 327 litres |
| Height: | 1980mm |
| Diameter: | 580mm |
| Hot water outlet: | 1494mm |
| Cold water outlet: | 168mm |
| Cylinder dry weight: | 73 kg |
| Tank Specifications: 261SMBD/261SMCD | |
| Capacity: | 261 litres |
| Height: | 1435mm |
| Diameter: | 620mm |
| Hot water outlet: | 1215mm |
| Cold water outlet: | 215mm |
| Cylinder dry weight: | 75 kg |
| Tank Specifications: 417SMBD/417SMCD | |
| Capacity: | 417 litres |
| Height: | 1760mm |
| Diameter: | 685mm |
| Hot water outlet: | 1525mm |
| Cold water outlet: | 230mm |
| Cylinder dry weight: | 100 kg |
| Heat Pump Specifications | |
| Weight: | 39 kg |
| Length: | 795mm |
| Width: | 255mm |
| Height: | 540mm |
For solar hot water that flows as sure as night and day call 1300 SID SOL or find your nearest reseller here
