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Full renovation / Heating & cooling

Full renovation · heating and cooling Heating & cooling

The principle first, then the unit. A boiler, an air-to-water heat pump and a multi-split air conditioner are three different approaches.

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Technical room with boiler and hot water cylinder
Technical room with boiler and hot water cylinder

The principle first Compare their role in the home.

Compare their role in the home, the infrastructure they need and the questions that must be settled before installation.

Whether a heat pump is suitable depends on heat loss, flow temperature, the outdoor location and the technical room — often combined with a better shell.

  • Coordinated with insulation and windows
  • Radiators or underfloor heating
  • Technical room planned in
Heating & cooling: Condensing boilerHeating & cooling: Heat pumpHeating & cooling: Multi-splitHeating & cooling · Condensing boiler

Boiler · heat pump · multi-split Three approaches.

A boiler, an air-to-water heat pump and a multi-split air conditioner are three different approaches. Compare their role in the home and what they need.

Gas boiler for heating and hot water.

A condensing combi boiler, such as the Vaillant ecoTEC plus, provides central heating and domestic hot water from a single unit. We assess it together with the radiators or underfloor heating, the flue, the gas connection and your hot water demand.

  • With radiators and/or underfloor heating
  • Correct flue and safety provisions
  • Comfort according to demand and line length

Once the principle is chosen: pipework, controls, safety components and maintenance access in the technical room — coordinated with floors, walls and ceilings.

Technical room Space, distribution and access work together.

Once the principle is chosen, the technical room must be able to house the pipework, safety components, controls, hot water appliances, acoustic measures and safe maintenance access.

  1. 01Generation

    Boiler, heat pump or multi-split outdoor unit

  2. 02Distribution

    Pipes or refrigerant lines to radiators, underfloor heating or indoor units

  3. 03Controls and safety

    Controllers, safety components, hot water

  4. 04Access

    Reachable for commissioning and maintenance

Plan early What is fixed before installation.

  1. Space for distribution, controls and safety components.

  2. Technical room coordinated with floor, wall and ceiling finishes.

  3. Plan drainage, power supply and maintenance access early.

  4. Decide in advance on the location, noise and condensate drainage of an outdoor unit.

Projects Homes we fully renovated.

Roof, façade and joinery in one schedule, with one point of contact.

BrusselsAntwerpLimburgEast FlandersFlemish BrabantWest FlandersWalloon BrabantHainautLiègeLuxembourgNamurANTWERPENLIMBURGOOST-VLAANDERENVLAAMS-BRABANTWEST-VLAANDERENWAALS-BRABANTHENEGOUWENLUIKLUXEMBURGNAMEN

26cities in 6 provinces
from Bruges to Namur

In and around the home Comfort in every season.

A boiler in the technical room, a heat pump outside, indoor units in each room.

Condensing boiler
Condensing boiler
Air-to-water heat pump
Air-to-water heat pump
Multi-split indoor unit
Multi-split indoor unit
Grants and financing

We check what you are entitled to.

Which grants are available for your renovation depends on the work and your situation. Our adviser finds out what you're entitled to, submits the applications with you and, if you wish, arranges a renovation loan through KBC.

Grants & financing →

Questions about heating and cooling What our clients ask us.

Is a heat pump suitable for my home?

That depends on heat loss, flow temperature, the outdoor location and the technical room. A heat pump often works with low-temperature radiators or underfloor heating.

Can I also heat with a multi-split?

Yes, a multi-split can cool and heat room by room — provided the design accounts for capacity, line lengths, condensate drainage and the location of the outdoor unit.

Why insulate first?

A better shell reduces heat loss; that helps determine which system and how much capacity you need.

Who sizes the system?

Every system is sized, hydraulically designed and commissioned for each home.

Free site visit · quote within 48 hours Ready for
a comfortable home?

Our specialist inspects your home and sends you a tailored, no-obligation quote within 48 hours.

Phone
+32 333 20 630
Email
leads@gravagroup.be
Address
Sneeuwbeslaan 14, 2610 Wilrijk

Free 3D visualisation with your quote

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