Single to Double RAD - Help please!

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I have done a search of the forum but couldn't find an definitive answer hence this post.

I have an ancient single radiator (1600 width) that is providing insufficient heat for our hallway. I want to replace it for a double, however the depth of the single from the wall is 45mm and the double is 85mm meaning some alterations...

I am reluctant to change the existing pipework up to the TRV's as only access to pipes is via 1/2M crawlspace under the floor. Also the hallway has parquet flooring which i don't want to damage. So my question is, could I fit a radiator of a smaller width (1400) giving me an extra 10cm space at both end of the radiator. What i'm not clear on is how I then pipe to the radiator.

Looking at the push-fit connectors I could;
Use an elbow to give me the extra depth needed from the valves off the wall, and another elbow to then point towards the radiator. I might then need an adjustable connector from the elbow to the radiator.

An elbow - elbow - connector - rad, seems a bodge to me with lots of points of failure. Is this standard practice? If not I guess I need to bend some copper pipe into an 'S' myself - which sounds a bit tricky.

Any advice gratefully received ....

Fozzy
 
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What your suggesting sounds horrific!

There is quite often enough play in the pipes to allow connection to a DP radiator otherwise altering the pipework before the radiator valve is better if you dont want to alter below the floor. Cut the pipe back and use a couple of end feed 90s to step the pipework out.
 
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Like this :
14475833961681831238864.jpg
 
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Thanks all for the help. Putting in a longer radiator would be ideal but unfortunately that's not possible. I will look at cutting the pipes back with end feeds.

Thanks, Fozzy
 
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Your existing rad presumably does not have any fins.

Fitting a modern finned rad will give about 30% increase in heat output.

There are many simple solutions that professionals use and most look pretty good.

Presumably the flow and return temps are correct on your rad?

Tony
 

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