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Buderus WLW176i T180 all-in-one heat pump in Erps-Kwerps

Case study: a compact air-to-water heat pump with an integrated 180 L tank — our best-seller.
June 14, 2026 by
Buderus WLW176i T180 all-in-one heat pump in Erps-Kwerps
Ecowatt NV
Buderus WLW176i T180 all-in-one heat pump installed in Erps-Kwerps by Ecowatt

In Erps-Kwerps (Kortenberg), we replaced an old boiler with a Buderus all-in-one air-to-water heat pump featuring an integrated 180 L domestic hot water tank and a built-in buffer tank — compact, affordable, and our best-selling solution.

The context

The customer wanted renewable heating and hot water without cluttering the boiler room. We removed the old boiler and old water heater and installed an all-in-one air-to-water heat pump. The project was carried out in Erps-Kwerps (Kortenberg).

The installed solution

  • Buderus WLW176i-7 air-to-water heat pump (monobloc, natural R290 refrigerant, exceptionally quiet).
  • Integrated 180 L domestic hot water tank: a generous hot-water reserve built right into the unit — the model's main asset.
  • Built-in buffer tank as well: it ensures good water flow for the heat pump and limits start/stops, with no extra footprint.
  • Compact solution: minimal footprint, simple and fast installation.
  • Excellent value for money — the model we install most.
  • Connected to the existing system, with removal of the old boiler and old water heater.
Buderus WLW176i T180 all-in-one indoor unit: integrated 180 L hot water tank and buffer tank

The benefits for the customer

  • Renewable heating and hot water, in a single appliance.
  • Space savings thanks to the all-in-one design.
  • Simple installation and controlled cost.
  • Eligible for subsidies (see below).

Subsidies: up to €6,000

In Flanders, an air-to-water heat pump qualifies for a subsidy of up to €6,000, depending on your region and income. Combined with the energy savings, the investment quickly pays off.

Estimate your subsidy with our simulator

A similar project?

Are you considering a heat pump? Our advisors carry out a free assessment for your home. Call us on +32 15 62 70 80.

Request your free quote

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