Dec 28, 2004 8:15 pm
We have the return vent (cold air intake?) for our central heating system in the corner of our lounge / dining room. We really want to stick a low side-board / tall boy over it, but I wanted to know how much clearance you think we should leave. Is just two or three inches enough?
More importantly, what are the risks if we dont have enough clearance? What is the worst that can happen? Will it just be that the heating works inefficiently?
Any help / advice is much welcome as we really want to cover what is an ugly corner of the lounge.
Re: Central heating intake clearance: HELP!3
May 25, 2005 2:34 pm
Thanks Marko! Very much interested in the answer. The grille on the floor is 500mm square, The tall boy we are looking at is 500mm deep and has a clearance of only about 100mm. Will this be enough for the heating to operate propoerly?
Thanks in advance for any suggestions!
Re: Central heating intake clearance: HELP!4
May 31, 2005 3:47 pm
Sorry been away. If you have 100mm height clearance all around the tallboy that would be ok. (At least around 3 sides as I imagine the tallboy will be up against the wall)
The worst that will happen depending on the age of your heater - old ones, after a long time, could overheat and crack the heat exchanger. New ones will turn themselves off when they get too hot.
Restricting the return air stops the right amount of air getting to the heater. Less air running through the heater means it runs hotter.
A simple way of telling whether it is being restriced is by noise. Generally speaking any sucking air from the R/A Grille means it is being restricted.
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