Add Another £2500 To That Heat Pump Bill

By Paul Homewood


h/t Ben Vorlich


Add a other £12 billion to that Net Zero bill!



The Heating and Hot Water Industry Council (HHIC) has this week warned Government advisors that there is a potential £12.5billion risk to consumers when it comes to heating their homes in future.

They have claimed that five million homeowners will need to fund urgent system upgrades, costing an estimated £2,500 per household, to prepare for installing a heat pump. The Heating Up to Net Zero white paper has been penned to inform future policy about how these costs can be avoided.

The issue is said to be that many houses built since the Seventies were fitted with microbore central heating pipework.

This means the diameter of the pipes is less than 15mm, typically eight or 10mm, while technologies such as heat pumps require a diameter of at least 22mm.

Microbore became highly popular in the new-build market for central heating installations as it was cost-effective and easier to install due to its smaller size.

But because the pipework is largely hidden from view under the floorboards, a replacement can reportedly be expensive and highly disruptive. 


There should be little surprise about this. It is the same problem that will require the installation of bigger radiators, because the hot water flow from heat pumps is low temperature.

The alternative of course is under floor heating. Either solution will be costly.

The report suggests that this problem is limited to houses built since the 1970s, but I would argue that the problem is much more widespread.

Very few houses were built with central heating systems installed  prior to then. In the vast majority of these, central heating was added many years later, and will therefore almost certainly have the same small bore pipework.

Even if that is not the case, it is those older houses which will need huge amounts to be spent on insulation if heat pumps are installed.

This whole saga exemplifies how the mad rush to heat pumps and other low carbon heating solutions has been launched without the slightest attention being paid to what it might all cost.


September 29, 2021 at 05:00AM

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