ᐅ Insulation in the 1970s Compared to Today, Modern Insulation, Heating Costs
Created on: 5 Nov 2012 10:29
M
meisterlampe
I would be interested in an assessment of how much higher heating costs (in percentage) you can expect in a house built around 1970 with solid construction according to the standards of that time (including windows), compared to modern insulation as commonly used today.
Are there significant differences? This concerns exterior walls and the roof.
Where are the biggest heat losses likely to occur? Exterior walls, windows, or the roof?
Which renovations would be particularly necessary, and which ones less relevant?
Thank you
Are there significant differences? This concerns exterior walls and the roof.
Where are the biggest heat losses likely to occur? Exterior walls, windows, or the roof?
Which renovations would be particularly necessary, and which ones less relevant?
Thank you
The other way around. The piston expands more because the cylinder is water/oil-cooled (which is not so easy to do with the piston). Moreover, this is basically twice as problematic: the expansion of the cylinder reduces the internal clearance (since the expansion happens evenly in all directions), and the piston, which moves inside this clearance, also becomes larger.
Häuslebauer40 schrieb:
Ok, that makes sense. At least for gas. This applies to all heat generators, not just gas. I remember when the first modulating gas condensing units came onto the market. Especially two manufacturers tried to present full modulation as unnecessary or dispensable through various publications. Today, these manufacturers also offer modulating gas condensing units.
Häuslebauer40 schrieb:
....With a modulating heat pump, for example, it should be different. Which modulating heat pumps do you know? If the annual full load hours of a heat generator are << 2300..2500 h/a, one should consider this carefully.
Best regards
H
Häuslebauer408 Nov 2012 07:48€uro schrieb:
Which modulating heat pumps do you know?Mine does.