Summer heat out, comfortably cool in.
Cool your home through the ventilation system you already have. ComfoClime on the Zehnder ComfoAir Q — no outdoor unit — or a ComfoPost duct cooler. Installed and commissioned by the first ComfoClime-certified installer in the Netherlands.
Recent · ComfoClime on site
ComfoAir Q600 + ComfoClime 36 in practice.
Commercial project: complete HRV + ERV + ComfoClime heat pump build.
The ComfoClime sits directly on top of the ComfoAir Q — one compact indoor set-up that ventilates, recovers heat and cools, without any outdoor unit.
- Plug-and-play on the ComfoAir Q
- Cools in summer, pre-heats in winter
- No outdoor unit, no refrigerant lines outside
- Commissioned by certified installers
Two ways to cool
ComfoClime for Zehnder, ComfoPost for every system.
Zehnder ComfoClime
Air-to-air heat pump on the ComfoAir Q · 24 & 36
The ComfoClime sits directly on top of the ComfoAir Q and tempers the incoming air: cooling in summer, pre-heating in winter. One indoor set-up, no outdoor unit, controlled automatically via the app.
- ComfoClime 24 → ComfoAir Q350
- ComfoClime 36 → ComfoAir Q450 & Q600
- Cools ánd pre-heats via your ventilation
- No outdoor unit or visible pipework
- Exclusively for the Zehnder ComfoAir Q
ComfoPost duct cooler
Water-fed cooling in the supply duct
The ComfoPost is mounted in the supply duct and cools ánd dehumidifies the incoming air with cold water from your (hybrid) heat pump. Works together with the summer bypass — brand-independent, so also with a Renson Flux+.
- Cools and dehumidifies the supply air
- Uses cold water from your heat pump
- Works with the automatic summer bypass
- Fits Zehnder ánd Renson systems
- Invisible: built into the ductwork
Honest expectation: cooling through ventilation tempers by a few degrees and keeps the heat out — it is comfort cooling, not a full air-conditioning replacement.
Our work
ComfoClime installations in Dutch homes.
ComfoClime certificate
1st in the NetherlandsWTW.nl was the first installer in the Netherlands to receive the official Zehnder ComfoClime certificate. That means certified commissioning, valid warranty and the performance Zehnder designed the system for.
View certificate (PDF)How to proceed?
From request to cool supply air in 1 week.
Fill in the form
Or call us directly for a quick intake.
We call within 24 hours
Short check: which unit, which size, ComfoClime or ComfoPost.
Installed + commissioned
Certified installation, explained on delivery.
Frequently asked questions
Answers to the most common questions.
What does ComfoClime cost?+
Does ComfoClime replace air conditioning?+
Which unit does ComfoClime fit?+
I have a Renson unit — can I still cool?+
Why a certified installer?+
Request your cooling quote.
Reply within 24 hours. We advise ComfoClime or ComfoPost based on your system.
Prefer to call?
Official dealer Zehnder · Renson · Duco·First in NL with ComfoClime-certificate
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