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Property118 | EPC rating destroyed by Positive Input Ventilation (PIV)? - Property118

9:32 AM, 30th August 2023, About 3 months ago 46

Hello, I own three fairly typical mid terrace solid-brick houses. All have double glazing, loft insulation and gas central heating. Over the last year I have had Positive Input Ventilation (PIVs) installed in all three. Suspended Heat Recovery Ventilators

Property118 | EPC rating destroyed by Positive Input Ventilation (PIV)? - Property118

These have been great in reducing condensation and mould, and the tenants and I are very happy with them.

I had an EPC done at one of the properties today, and it has been rated an E. The assessor says that the PIV ‘batters the EPC’!

How can something that costs very little to run, and has such a positive effect on the living standards and health of the tenant, be viewed so negatively when it comes to an EPC rating?

Tags: Compliance with EPC regulations, EPC rating, piv, positive input ventilation, rented home

Have your say by commenting below

10:10 AM, 30th August 2023, About 3 months ago

I guess taking cold air from the loft in the middle of winter isn’t particularly positive.

Damp and mould are caused by faults within the fabric of the house. PIVs only deal with the symptoms, not the cause.

10:53 AM, 30th August 2023, About 3 months ago

Wow, I've got one of these in one of mine & it has helped loads. And we get penalised again.

11:05 AM, 30th August 2023, About 3 months ago

"Damp and mould are caused by faults within the fabric of the house"

I'd attribute much blame to tenant behaviour. They either understand the problem or they don't. We all know what I refer to!

11:16 AM, 30th August 2023, About 3 months ago

The assessor is incorrect, PIV is not a whole house mechanical extract ventilation system and therefore is ignored for the purposes of an EPC.

11:19 AM, 30th August 2023, About 3 months ago

"Damp and mould are caused by faults within the fabric of the house. " oh yes What about tenants inapproproprate operation of the home?

11:20 AM, 30th August 2023, About 3 months ago

Reply to the comment left by Teessider at 30/08/2023 - 10:10 "Damp and mould are caused by faults within the fabric of the house"

Not necessarily. Condensation can often be attributed to a tenants lifestyle. Not opening windows, not having the heating on, switching off extractor fans etc.

11:29 AM, 30th August 2023, About 3 months ago

The same will happen with vents on chimney breasts and passive air vents.

Victorian builders understood the need for movement of air to stop properties becoming mouldy. Have we not learnt that living in sealed boxes is not good for either our health or the building’s health?

11:29 AM, 30th August 2023, About 3 months ago

Most damp and condensation is caused by tenant lifestyle. Even when told how to ventilate etc and do all the other things which prevent condensation, tenants generally don't bother. These PIV's are the most amazing answer to this problem. Where there used to be damp and mould on the walls, now this has been completely eradicated by the installation of a PIV in the loft - the flat now smells of clean, fresh air every time I go in. They are amazing! Such a shame the EPC has gone down - more madness from the Government.

12:03 PM, 30th August 2023, About 3 months ago

This just goes to show that the EPC system is not fit for purpose and needs to be reformed BEFORE the decent homes standard is voted in by the government

12:12 PM, 30th August 2023, About 3 months ago

Reply to the comment left by Mike Ellis at 30/08/2023 - 11:16 If Mike is correct - which sounds likely to me. Paul(OP) should be able to have a assessment corrected. Mike: do you have a link or reference Paul can leverage?

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Property118 | EPC rating destroyed by Positive Input Ventilation (PIV)? - Property118

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