Hi everyone,
we are building a small solid house with a general contractor. Originally, the plan was to have a gas boiler with a controlled ventilation system.
Now that we finally have an installer assigned, he told us there is no space for controlled ventilation!
This is quite short notice since the excavator is already on site, and digging for the foundation will probably start on Monday.
The general contractor has presented us with the following options:
Option 1:
- Gas condensing boiler with solar thermal system
(Photovoltaic system does not make sense here!)
Requirements:
o Flue pipe (either on the exterior wall or in the cloakroom niche)
o Buffer tank
o Expansion vessel
o Condensing boiler
o Piping for solar system up to the roof
Requires a lot of space
Option 2:
- Gas condensing boiler with ventilation (just sufficient for energy saving regulation calculations)
(Photovoltaic system does not make sense here!)
Requirements:
o Flue pipe (either on the exterior wall or in the cloakroom niche)
o Buffer tank
o Expansion vessel
o Condensing boiler
o Ventilation system (ceiling-mounted)
Basically no space available
Option 3:
- Air-to-water heat pump with ventilation
(Photovoltaic system can be added later – empty conduit to the roof)
Requirements:
o Buffer tank
o Expansion vessel
o Outdoor unit for air-to-water heat pump
o Ventilation system (ceiling-mounted)
o 10cm (4 inches) build-up in the sloped roof area needed for ventilation ducts
Option 4:
- Air-to-water heat pump without ventilation
(Energy saving regulation compliance is technically not a problem, but mechanical ventilation should possibly be ensured by e.g. window frame ventilation)
(Photovoltaic system can be added later – empty conduit to the roof)
Requirements:
o Buffer tank
o Expansion vessel
o Outdoor unit for air-to-water heat pump
Unfortunately, the additional costs for these options have not been communicated to us.
We are currently leaning towards option 4, but we are quite uncertain about these window frame ventilation solutions...
Have a nice Sunday
Marvin
we are building a small solid house with a general contractor. Originally, the plan was to have a gas boiler with a controlled ventilation system.
Now that we finally have an installer assigned, he told us there is no space for controlled ventilation!
This is quite short notice since the excavator is already on site, and digging for the foundation will probably start on Monday.
The general contractor has presented us with the following options:
Option 1:
- Gas condensing boiler with solar thermal system
(Photovoltaic system does not make sense here!)
Requirements:
o Flue pipe (either on the exterior wall or in the cloakroom niche)
o Buffer tank
o Expansion vessel
o Condensing boiler
o Piping for solar system up to the roof
Requires a lot of space
Option 2:
- Gas condensing boiler with ventilation (just sufficient for energy saving regulation calculations)
(Photovoltaic system does not make sense here!)
Requirements:
o Flue pipe (either on the exterior wall or in the cloakroom niche)
o Buffer tank
o Expansion vessel
o Condensing boiler
o Ventilation system (ceiling-mounted)
Basically no space available
Option 3:
- Air-to-water heat pump with ventilation
(Photovoltaic system can be added later – empty conduit to the roof)
Requirements:
o Buffer tank
o Expansion vessel
o Outdoor unit for air-to-water heat pump
o Ventilation system (ceiling-mounted)
o 10cm (4 inches) build-up in the sloped roof area needed for ventilation ducts
Option 4:
- Air-to-water heat pump without ventilation
(Energy saving regulation compliance is technically not a problem, but mechanical ventilation should possibly be ensured by e.g. window frame ventilation)
(Photovoltaic system can be added later – empty conduit to the roof)
Requirements:
o Buffer tank
o Expansion vessel
o Outdoor unit for air-to-water heat pump
Unfortunately, the additional costs for these options have not been communicated to us.
We are currently leaning towards option 4, but we are quite uncertain about these window frame ventilation solutions...
Have a nice Sunday
Marvin
I will gladly provide the floor plans once I am back from the playground.
At the time, we agreed to have gas heating with controlled residential ventilation. It was then calculated and confirmed that this would work energetically. That is probably why this point was included in the contract with additional costs of nearly 12,000 (but still as an option).
At the time, we agreed to have gas heating with controlled residential ventilation. It was then calculated and confirmed that this would work energetically. That is probably why this point was included in the contract with additional costs of nearly 12,000 (but still as an option).
Yes, please go ahead and send it, I’d be happy to take a look. If it’s possible, you will need to intervene directly.
We also had to find a continuous wall to run the ventilation ducts from the basement to the ceiling of the upper floor. That wasn’t easy. My neighbors couldn’t manage it and switched to a decentralized ventilation system.
Optional features are of course tricky. I was constantly pestering the general contractor for structural work and the plumbing subcontractor every week to ensure coordination and that nothing (no openings, whether inward or outward) was overlooked.
We also had to find a continuous wall to run the ventilation ducts from the basement to the ceiling of the upper floor. That wasn’t easy. My neighbors couldn’t manage it and switched to a decentralized ventilation system.
Optional features are of course tricky. I was constantly pestering the general contractor for structural work and the plumbing subcontractor every week to ensure coordination and that nothing (no openings, whether inward or outward) was overlooked.
1. The utility room is only 5 m² (54 ft²), so if a washing machine is added, it won’t fit. It should definitely be inside. The ventilation grille itself measures 25 cm by 110 cm (10 inches by 43 inches) plus the drywall surrounding it, so it’s quite substantial.
2. Your idea would actually work, but where would the washing machine and dryer go then?
You probably need the office space for work, right? It’s a shame to lose those square meters. Otherwise, if you’re interested, you’re welcome to visit the construction site. It’s only 23 km (14 miles) from you.
2. Your idea would actually work, but where would the washing machine and dryer go then?
You probably need the office space for work, right? It’s a shame to lose those square meters. Otherwise, if you’re interested, you’re welcome to visit the construction site. It’s only 23 km (14 miles) from you.
Yes, it is really very small, but the structural engineer said that everything will fit in, although the installer will hate it.
The home office doesn’t really need to be that big. Do you have any other ideas? I would actually prefer it to be a bit smaller, just so the tax office doesn’t ask questions or come for an inspection! (Because I was already planning to put a sofa bed in there in case we have a guest.)
The home office doesn’t really need to be that big. Do you have any other ideas? I would actually prefer it to be a bit smaller, just so the tax office doesn’t ask questions or come for an inspection! (Because I was already planning to put a sofa bed in there in case we have a guest.)
The general contractor/architect dropped the ball. I’d bet on it!
A mechanical ventilation system can be installed on the ceiling. And if you have more ceiling height than we do (2.45m (8 feet)) it would work perfectly in the freezer room.
It doesn’t even have to be a full wall; the pipes just need to come out somewhere near the top. Then they can be concealed in the screed.
However, the house is already quite compact. Where are you planning to put your wardrobe? Where will you store anything at all?
A mechanical ventilation system can be installed on the ceiling. And if you have more ceiling height than we do (2.45m (8 feet)) it would work perfectly in the freezer room.
It doesn’t even have to be a full wall; the pipes just need to come out somewhere near the top. Then they can be concealed in the screed.
However, the house is already quite compact. Where are you planning to put your wardrobe? Where will you store anything at all?
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