ᐅ Cat flap in KfW55 house with ventilation – any experiences?
Created on: 23 Mar 2021 09:33
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KUM_im_Tal
We have a KfW-55 end-terrace house with insulation, triple glazing, and a ventilation system. Now we want to install a cat flap in a glass panel next to the patio door. Has anyone done this before?
- How does this affect the performance of the ventilation system? It won’t be completely airtight anymore.
- How much heat loss can we expect – it’s just a simple plastic flap, after all.
- Is installation even possible with triple glazing that also has RC2 security features?
We would have a professional company do the installation, but we’re not sure if it’s all feasible. I would appreciate hearing about others’ experiences.
- How does this affect the performance of the ventilation system? It won’t be completely airtight anymore.
- How much heat loss can we expect – it’s just a simple plastic flap, after all.
- Is installation even possible with triple glazing that also has RC2 security features?
We would have a professional company do the installation, but we’re not sure if it’s all feasible. I would appreciate hearing about others’ experiences.
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KUM_im_Tal23 Mar 2021 17:58opalau schrieb:
It cost us 600 EUR including installation for a triple-glazed unit measuring about 1x2m (3x6.5 ft). They also installed the vent. Still expensive if it’s not going to be used… 🙄 600 EUR (around $650) would be acceptable for me. The glass unit is roughly the same size and needs to be replaced here as well because it was previously RC2 (laminated). So maybe it’s better to visit a local glazier rather than asking the manufacturer?
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KUM_im_Tal23 Mar 2021 17:59Winniefred schrieb:
The safest and most sustainable solution remains manual opening...That’s true. But if you’re away for a week, it’s not great for the cat...
KUM_im_Tal schrieb:
600 EUR (about 640 USD) would be acceptable for me. The glass element is roughly that size and would also need to be replaced here because it is currently RC2 (laminated). So maybe I should visit a local glazier instead of asking the manufacturer?We hired a glazier from the local area who also supplied and installed several mirrors. He was also surprised how affordable it was.
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Badener197023 Mar 2021 21:33We will receive our KFW 55 house in 4 weeks and have had a hole installed in a triple-glazed fixed window, costing 360 euros, plus a SureFlap for 80 euros, and that completes the cat door. Heating costs? Ridiculous...
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KUM_im_Tal24 Mar 2021 10:47Badener1970 schrieb:
In four weeks, we'll receive our KfW 55 house, and we had a hole installed in a triple-pane fixed glazing, costing 360 euros plus a Sureflap for 80 euros, and that completes the tiger front door. Heating costs?? Ridiculous...
The original window manufacturer charges 1,600 euros for the modification... Unfortunately, we have fully laminated RC2 glass. You probably can't just cut a hole into that.