---
title: "Replacing a boiler with a heat pump | IM Duurzaam"
description: "Replacing a central heating boiler with a heat pump in an existing home. See how IM Duurzaam approached this project: from insulation to hot water."
url: "https://im-duurzaam-upgrade.ubo-dev.nl/en/projects/replacing-a-boiler-with-a-heat-pump/"
language: "nl"
---

Heat Pump

Residential

# Replacing a boiler with a heat pump

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**In short**

- Home transitioned off gas (3,100 m³ per year)
- 8 kW Daikin Altherma for ground floor underfloor heating, convector, and 230L hot water tank
- Bedrooms equipped with air conditioning

![1Y1A3393](https://im-duurzaam-upgrade.ubo-dev.nl/media/uploads/2025/05/1Y1A3393-scaled.jpg?width=1500 "1Y1A3393")

## The client’s request

In 2023, the client approached us with the question of whether it was possible to move away from gas. This large corner house had a high gas consumption of 3,100 m³ per year. After the initial conversation, the goal was not only to eliminate gas usage, but also to improve comfort on the upper floors, where only radiators were installed.

## How we supported the client:

Following the initial consultation, we carried out a full assessment of the property. Several key points became immediately clear:

- There was no floor insulation, causing significant heat loss through the underfloor heating into the crawl space
- The top floor lacked cavity wall insulation. These are always the first steps we take: reducing energy consumption before implementing new systems.

There was also a clear need to cool the four bedrooms on the first floor and in the attic. A key advantage of air conditioning is that it can also deliver energy-efficient heating.

The existing boiler was 14 years old and had recently undergone its second repair. After exploring several options together, we agreed on the following solution:

## 2023:

- Floor and facade insulation installed to reduce energy consumption
- 4 DAIKIN air conditioning units installed in the bedrooms, connected to 2 DAIKIN multi-split outdoor units

## 2024:

- Existing boiler removed and decommissioned
- Sealing off the flue gas exhaust
- DAIKIN heat pump installed in the utility room
- DAIKIN heat pump connected to the entire ground floor and bathroom
- DAIKIN indoor unit equipped with a 230L hot water tank, sufficient for two consecutive showers
- Gas connection disconnected by the client

![1Y1A3393](https://im-duurzaam-upgrade.ubo-dev.nl/media/uploads/2025/05/1Y1A3393-scaled.jpg?width=1500 "1Y1A3393")

![1Y1A3345](https://im-duurzaam-upgrade.ubo-dev.nl/media/uploads/2025/05/1Y1A3345-scaled-e1748416608886.jpg?width=1500 "1Y1A3345")

![1Y1A3281](https://im-duurzaam-upgrade.ubo-dev.nl/media/uploads/2025/05/1Y1A3281-scaled.jpg?width=1500 "1Y1A3281")

![1Y1A2591(uitgeknipt)](https://im-duurzaam-upgrade.ubo-dev.nl/media/uploads/2025/04/1Y1A2591uitgeknipt-e1748421271239.png?width=800 "1Y1A2591(uitgeknipt)")

Do you have a question or would you like to learn more?

## We are here to help.

[Contact us](https://im-duurzaam-upgrade.ubo-dev.nl/en/contact/)

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