NIBE S2125-20 R290 Air Source Heat Pump (20kW)

The NIBE S2125-20 is the largest domestic unit in NIBE's premium air-to-water range, using natural R290 propane refrigerant — suited to the biggest homes and small commercial projects.

• 20kW output — largest domestic / small commercial
• Flow temperatures up to 75°C — excellent for radiator retrofits
• A+++ rated; high SCOP even at low temperatures; runs to −25°C
• R290 natural refrigerant (very low GWP)
• Single- or three-phase; S-series smart control + myUplink app

Please note: the S2125 is the outdoor unit. It pairs with a NIBE indoor module or cylinder (e.g. VVM S320 or SMO controller) — we'll specify the right pairing for your home on installed orders.

Grants & VAT: Eligible for the £7,500 Boiler Upgrade Scheme grant when fitted by an MCS-certified installer. Installations qualify for 0% VAT (to 31 March 2027).

Supply only for your own installer, or supply + installation through Climate Cart's MCS-certified partner network across Beds, Herts & Bucks.