ᐅ How much did you pay for your mechanical ventilation system with heat recovery?

This is like the question: "My car costs 54,000€ according to the list price, how much did yours cost?" Without precise details, this information is useless to you. The quote for our controlled residential ventilation system is 6,200€ in material costs alone, while a friend installs a controlled residential ventilation system himself for 2,500€. Which one is better now?

It depends on the floor plan, the floor structure, where pipes can be routed, what special features are included, and so on. The total amount at the bottom right doesn’t really help you compare, because you don’t know what’s included. And before signing anything, you should know exactly what is covered.

I clearly stated that it is important to specify what is included and what is not. For example, a Golf VII with 87 hp, automatic transmission, automatic climate control, navigation, and packages x, y, and z for 25,000 EUR, or a basic Dacia Logan for 7,600 EUR, and so on.

I never said it was just about a single number, period. With or without a brine-to-water ground source heat exchanger, with or without a silencer, how many? How many supply and exhaust air outlets? What living area? Floor? Ceiling? Preheating coil included? Moisture recovery included? Of course, only if none of this is confidential. Those who do not want to provide details don’t have to write anything. An answer like “for us it costs 6,200 EUR, PERIOD” is indeed not helpful.

Grym schrieb:
I never said it’s just about a single number, period. With or without a brine ground heat exchanger, with or without a silencer, how many? How many supply and exhaust air outlets? What living area? Floor? Ceiling? Is a preheater included? Is moisture recovery included? Naturally, only if none of this is secret. If someone doesn’t want to share, they don’t have to write anything. An answer like “for us it costs 6,200 EUR PERIOD” really doesn’t help.

But how do you want to compare my offer with your two, when you only have one number? You don’t know which manufacturer, which pipe type, which additional features, and so on. If I were you, I’d first make your two offers comparable, because you can’t commission someone else’s offer. If you notice serious inconsistencies during this comparison, you can ask about them here specifically.

This is exactly the same kind of question as: “How much extra did you spend during the selection process on items not included in the standard package?” Every builder/developer has their own standard—some lower, some higher—but in the end, they usually come to a very similar amount for the same house. However, that doesn’t mean that if someone says “we spent an extra 2,000€ on the front door,” you can automatically assume you will also need to budget a 2,000€ surcharge for your builder/developer. In short: you need to know the starting point.

Huh? Of course, you can draw a lot of conclusions from "we spent 2,500 EUR on a Topic Current B9 T1 with side panel ST-B1. The standard version included a white uncoated plastic door."

Of course, I can compare your offer if you specify it. Of course, I can remove the ventilation/plumbing/heating trades. Of course, I can use a different general contractor, since nothing has been signed yet.

By the way, we have already largely agreed with our current general contractor that everything can be included in the contract except for the final number of power outlets, the exact bathroom fixtures, interior doors, front doors, etc. — so we basically have a fixed final price (except for possible additional foundation costs, which no one can predict in advance).

What I need are just general, somewhat comparable facts. Only somewhat comparable because several thousand euros for 7 supply air outlets, 8 exhaust air outlets, 2 telephone sound attenuators, a brine geothermal heat exchanger, no moisture recovery, supply air routed in the floor and exhaust air in the concrete ceiling, and a system from manufacturer xy sized for xxx m2 (xxx sq ft) may be 100 percent comparable, but only “SOMEWHAT.”

So, back to the original question: What did you pay and what was included? Emphasizing what was included and, of course, what was missing?

Grym schrieb:
Huh? Of course, you can draw many conclusions from "we spent 2,500 EUR on a Topic Current B9 T1 door with a side panel ST-B1. The standard was a white, unlaminated plastic door."

And what does that do for you? Then you know that we spent 2,500€ more on the front door. And what are you going to do with that? Either complain because yours was more expensive, or celebrate because yours was cheaper. Or do you want to commission that, like "I want this door for 2,500€"? That’s what I’ve been talking about all along.

When I look at my friend’s house and he tells me he spent 600,000€ on it, I see the details too—but what use is that to me? It doesn’t help me in my own situation. It only helps if I have a full quote with the complete scope of work and know what was ordered and what it cost.

But you’re not there yet, because you only have a total price—you don’t know what services are included. I don’t think anyone here is going to type out their entire parts list with quantities and individual prices, because that’s exactly what they’d have to do. First, get the scope of work, then you can post it here and have people assess whether it’s expensive or not. You rarely get something served on a silver platter in a forum...

We have a Helios controlled residential ventilation system with heat recovery, ceiling unit, preheating coil, reheating, pollen filter, design outlets on the ground floor, kitchen grease filter, stainless steel floor vents on the upper floor (except bathroom), (a total of 5 supply and 4 exhaust vents), comfort control and web server, stainless steel exterior cover, FlexPipe ducting, and 2 silencers, for just under €9,000.00.

Edit: City villa with 130 m² (1,400 sq ft), 2 bathrooms, 3 bedrooms, 1 utility room/laundry room.