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
M4rvin schrieb:
You definitely have to submit an amendment to the authorities, right? The guest WC window would be in a different location then... Please correct me if I’m wrong, but I don’t think that’s really necessary. We also made some minor changes after submitting the building permit / planning permission (windows, interior walls), and our general contractor said that "nobody cares about that."
opalau schrieb:
Feel free to correct me, but I don’t think that’s really necessary. We also made some minor changes after the building permit / planning permission application (windows, interior walls), and our general contractor said, “No one cares about that.” It probably depends on the region. Where we are, no one cared either. I think we could have put up a lighthouse there, and it wouldn’t have mattered.
M4rvin schrieb:
The guest bathroom window would then be located elsewhere... The foundation slab hasn’t been poured yet; they were supposed to start excavating today.The window placement probably doesn’t matter, but the wastewater system layout would no longer be correct, and that also needs approval.
You did submit a wastewater plan, right? I think once digging has already started, it’s too late for such changes. And since you’re planning for two children, you have the manpower to manually ventilate the rooms every day. The lack of storage space bothers me much more. Seriously, they cut corners everywhere to save on storage options.
B
boxandroof25 Feb 2019 15:02M4rvin schrieb:
So you would rather give up the mechanical ventilation system to have a bigger room? The mechanical ventilation system will probably fit under the ceiling of the utility room and won’t take up any usable space. You need to get everyone together to make it work.
Yvonne is definitely right about the storage space; it’s really very tight. The office will become a storage room. Is the space under the stairs enclosed? If so, you can use that for additional storage.
M4rvin schrieb:
Right, wastewater would be different anyway!
So you would rather give up the controlled mechanical ventilation system to have a larger room?Sorry, where is the larger room?
You have a 4 sqm (43 sq ft) utility room… even if the controlled mechanical ventilation system is mounted on the ceiling: 4 sqm full of deep freezer and then above you… I wouldn’t even want to do laundry there. What about the roof? Could it be a bit higher?
By the way, I think all this is coming quite late!
Similar topics