ᐅ Gas condensing boiler with an external solar storage tank or an integrated one

Created on: 27 Mar 2014 12:42
H
hetjam9
Hello,

Our construction meeting is scheduled for next week. We will be installing a gas condensing boiler (we can choose the manufacturer) along with a solar system on the roof for domestic hot water, including a 300-liter (79 gallons) storage tank.

We can also decide whether to have an external storage tank or a gas condensing boiler with an integrated storage tank, which is naturally smaller (I’m thinking between 150 and 200 liters [40 to 53 gallons]).

I would like to hear your opinions on this. In my view, the main advantage or disadvantage is the reduced space requirement. But what about maintenance if a component fails? Also, is 150 to 200 liters [40 to 53 gallons] sufficient for a household of four people?

Looking forward to your answers.
€uro
1 Apr 2014 14:28
Hello,
kurbelfred schrieb:
I think it probably has a small advantage due to the integrated storage. Unfortunately, I can’t say exactly how yet. Our heating system won’t be installed in the house for another 4–5 years.

Have a heat meter installed for the solar thermal system; then you will find out afterwards what this investment cost was actually worth! ;-)
However, it is hardly possible to change or correct this afterwards! ;-)

Best regards
E
Explosiv
1 May 2014 07:31
Hi
could you briefly outline the cost of installing a heat meter? The last thing you want is to spend good money on a heat meter for an unnecessary solar thermal system.
Y
ypg
1 May 2014 21:32
We also have the integrated water storage tank (310L (82 gallons)) in our Wolf system. Very satisfied with Wolf.

When I saw the technical rooms with separate storage tanks in show homes, I always thought: oh dear, such a waste of space for a heating system nowadays.

Ours has its "small" space—and we have more room left for the utility room 🙂