ᐅ Maintenance Contract for Residential Ventilation System, More Affordable Filters

Benutzer200 schrieb:

You can easily cut regular filters from mats yourself (except maybe filter cassettes for the central unit). It only costs a fraction.

I did the same. Filter mats for range hoods are available in large sizes at many hardware stores and supermarkets.
I buy the filter cassette for the central unit separately. Since my wife and I have pollen issues, we use an F7 filter mat. We've never had fewer allergy problems than we do now with our ventilation system.

Great answers. Thank you all!

netuser schrieb:

Better to handle it yourself, I guess 🙂

The technician recently told me that although he would recommend the maintenance contract/extended warranty for the heat pump, he could not recommend the same for the controlled ventilation system. Basically, it’s money wasted.

I would rather ask myself what exactly needs maintenance on a heat pump? Checking for leaks and making sure there’s enough water in the heating system?
But then again, there are people who pay hundreds of euros to have their car “thoroughly checked” by the authorized workshop. Making money couldn’t be easier.

Regarding the filters:
- Cone filters in G4 with progressive media are available for about €1 (around $1.10). I wonder why it should be worth making them yourself.
- Cassette filters are also available cheaply as aftermarket replacements. I would prefer a less expensive one and change it more often. Vacuuming only removes coarse dirt, but the filter will still clog up over time. Blowing it out with compressed air would be better here, but then the dirt gets spread everywhere.

Gecko1927 schrieb:

I would rather ask what exactly you maintain on a heat pump? Check if there are any leaks and if there is still enough water in the heating system?
But there are also people who pay hundreds of euros for an authorized service center to give their car a proper "check-up". It doesn’t get easier to make money.

Actually, I agree with you, especially when it comes to authorized service workshops. Although even here, some differentiation is necessary.
But as often is the case, the warranty plays an important role and it becomes void if maintenance is not carried out according to the warranty conditions.
From my current perspective, a maintenance contract can definitely make sense and can even be cheaper than using the open market.
An extended warranty costs money, but it is manageable and bearable. Each small defect costs significantly more than a flat-rate warranty extension for the heat pump. Of course, everyone has to decide and weigh this for themselves.

Gecko1927 schrieb:

Regarding the filters:
- Cone filters in G4 with progressive structure are available for about 1€ (around $1). I wonder why anyone would bother making their own.
- Cassette filters are also available as inexpensive aftermarket copies. I would rather buy a cheaper one and replace it more often. Vacuuming only removes the coarse dirt, but the filter still clogs up over time. Blowing it out with compressed air is better but then you spread the dirt everywhere.

Exactly, cone filters sometimes cost less than 1€ (around $1) each, so I wouldn’t start making my own either. But I don’t think those were meant here, right?

A few weeks ago, we had a discussion here about cassette filters and an interesting point from a user who compared the electricity consumption of different filters. The conclusion was that the “higher quality original filter” actually consumed less electricity than the third-party filter, so the calculated costs for the extra electricity and the savings from buying the aftermarket filter balanced out in the end.
I thought it was interesting to at least consider this aspect, as I would never have thought to include such side effects in the decision-making process otherwise.

True, I didn’t think about that either.

I believe the BAFA subsidy was also tied to the maintenance contract for the heat pump...