From window vents to heat recovery.
Still using an old MV box with window vents? You are literally blowing your heating out the window. We upgrade you to a full HRV, filtered, balanced, up to 96% efficiency.
Resultaat · Upgrade naar volwaardige WTW
Aansluiten op de bestaande situatie, zonder muren te slopen.
All-in estimate
Excl. VAT · terraced home · all-in. Fixed price after survey.
~€400–€700 per year less heating costs, depending on insulation and occupancy.
What is the difference?
MV vs HRV, why you want to upgrade.
- Exhaust only, no supply
- Fresh air via window vents (= draught + heat loss)
- No filtering: pollen, fine dust, outside noise
- Often loud, especially on level 3
- 0% heat recovery
- Supply and exhaust, balanced
- Fresh air via ducts, no more draught
- F7 filtering: pollen, fine dust, viruses
- Whisper-quiet, even at night
- Up to 96% heat recovered from exhaust air
What does the upgrade deliver?
Three reasons people switch.
Energy savings
€400–€700 per year
Up to 96% heat recovery means your heating no longer escapes through the vents. Payback in 8–12 years.
Health
F7 filtering
Pollen, fine dust, NOx and viruses captured. A difference for asthmatics, allergies, or anyone wanting clean air.
Comfort
No more draught
Fresh air enters warm and filtered via ducts, no more cold draught from window vents in winter.
What exactly do we do?
No mess, no fuss, working in 1 day.
Remove MV box
Old unit out, old ducts critically assessed for reuse.
Install supply ducts
A supply per room for fresh air. Usually in ceiling or floor, concealed.
Close window vents
Window vents neatly sealed, less draught, less outside noise.
How to proceed?
- 01Fill in the form
- 02On-site visit + survey
- 03Fixed-price quote
Frequently asked questions
Answers to the 5 most common questions.
Can I reuse existing ducts?+
How much does an MV→HRV upgrade cost?+
How much do I really save?+
Do I get a subsidy?+
How long does the work take?+
Ready to upgrade?
Reply within 24 hours. No obligation, no pushy sales.