One hazard of an outdoor heat pump/air conditioning unit is that condensation can form around the lines, eventually causing the insulation to rot. If the insulation is not in good condition, the system uses more energy in order to remain efficient, raising your business fuel bills and potentially leading to problems with your heating during the winter and air conditioning in the summer.

If you have a little DIY experience, you could fix the problem yourself relatively simply.

The right tools

Before you start dismantling the rotten insulation, you should obtain the right replacement materials. You can’t generally buy the cork tape or specialist insulation foam that is required for this job from a DIY store; you will probably need to get it online or from an HVAC supplier.

Remove the old insulation

Start by peeling off the old foam insulation and measure the diameter of the outer, larger tube. Cut a piece of the new foam to the right size.

Dry and wrap the heat pump/air conditioning tubing

Before replacing the old insulation, use paper towelling to thoroughly dry the air conditioning/heat pump tubing line. When the tubing is dry, wind a few wraps of poly cork tape around it at the point where the tubing exits your building. You will see a service valve at the condenser end of the tubing; dry this and wrap it tightly with cork tape.

Replace the old insulation

Now slide the new piece of insulation foam over the cork tape to encase the tubing. Peel off the adhesive liner from the foam and align the edges, pressing them together so that they form a neat seam.

Your heat pump/air conditioning lines will now be protected from condensation and your system should work to maximum efficiency throughout the winter, saving your business money on fuel bills. It is worth carrying out this job annually, rather than waiting for a problem to occur.

If you would rather leave the work to a professional, why not ask our friendly team to perform this job as part of your heat pump and air conditioning system’s annual service?

Robin Searles
Robin Searles
2023-12-08
Very happy with the service supplied by I-HT, from the initial survey with Lee and the install completed by Sam would and will highly recommend
Karl Chapman
Karl Chapman
2023-10-30
Top notch service, the guys turned up on time did a splendid job cleaned up and showed me how the system worked, super impressed .
Keith Young
Keith Young
2023-10-22
Fast, clean installation. Fully explained simple operation before departing.
terry colvill
terry colvill
2023-10-19
excellent swift service and the installation team installed the new unit quickly and professionally. Very happy with the service.
UK PRADO
UK PRADO
2023-09-27
I would just like to say that the service was great throughout - fast and efficient. The installation was the same. Your fitters were polite, thorough and knowledgeable and they did a very neat job and left no mess.
Claire Reeves
Claire Reeves
2023-09-27
A really easy, professional installation - from the initial request, through to installation and a call afterwards to check everything was working as it should. Highly recommended.
Gold7272
Gold7272
2023-09-12
Great service, lovely staff and quick to resolve any issues
blake thompson
blake thompson
2023-09-09
Top Quality Company, Had a new Air Conditioner fitted in our Care Home to keep Medication room cool during Warm days during summer. Unit works very well.. Fitting was done all in one day and it didn't take long to fit unit. Unit was fitted very professional. no untidy wires or piping. Outside Unit fitted to wall away from Public walking by. Tidy straight pipe work outside which uses builds drains to run drain pipe. Unit fits well on side on building.
motchman james
motchman james
2023-08-31
A great job from beginning to end. I would highly recommend, removed old broken unit and installed new uprated equipment. Looking forward to a long warm winter. Thanks guy's
Mingwei Chi
Mingwei Chi
2023-07-28
I would recommend IHT to anyone who would like to have aircon unit installed, especially the engineer did the installation who is very professional and polite. Highly recommended !