Head to head
Heatrae Sadia Multipoint 50 vs NIBE S2125 Model 8
The Heatrae Sadia Multipoint 50 is a electric unvented water heater, 50 litres. The NIBE S2125 Model 8 is a air/water heat pump, up to 5.4 kw heat output.
Last reviewed 13 September 2026
Specifications side by side
| Heatrae Sadia Multipoint 50 | NIBE S2125 Model 8 | |
|---|---|---|
| Dimensions | 1007 x 997 x 350 (V) / 371 x 371 x 350 (H) mm | 1070 x 1130 x 820 mm (H x W x D) |
| Capacity | 50 litres | - |
| Power | 3 kW, 230V | - |
| Heat-up time | approx. 58 minutes | - |
| Recovery time | approx. 41 minutes | - |
| Max operating pressure | 10 bar | - |
| Warranty | 2 years full warranty, 10 years on the inner cylinder | - |
| Heat output | - | 5.33 kW (average climate), 5.4 kW (cold climate) |
| SCOP | - | 5.0 at 35C, 3.7 at 55C (average climate); 4.1 at 35C, 3.2 at 55C (cold climate) |
| Sound power | - | 49 dB(A) at nominal rating (EN12102) |
| Weight | - | 150 kg |
| Max flow temperature | - | up to 75C |
Sources: Heatrae Sadia Multipoint 50, NIBE S2125 Model 8. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Multipoint 50 if...
A 50 litre electric unvented water heater from Heatrae Sadia's Multipoint range, for a property with no boiler-fed hot water such as an outbuilding or small flat. It runs from a 3kW element and carries a 10 year warranty on the inner cylinder.
Full Multipoint 50 specifications →Buy or hire the S2125 Model 8 if...
A smaller NIBE S2125 rated to keep working in cold climates, reaching up to 65C flow even at -25C outdoors. It suits a smaller house where cold-weather reliability matters more than raw output.
Full S2125 Model 8 specifications →Common questions
What is the difference between the Heatrae Sadia Multipoint 50 and the NIBE S2125 Model 8?
The Heatrae Sadia Multipoint 50 is a electric unvented water heater, 50 litres; the NIBE S2125 Model 8 is a air/water heat pump, up to 5.4 kW heat output.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.