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Commercial boiler replacement

A boiler replacement is an asset condition decision. It is worth being honest that it also locks in fossil heating for the life of the plant, which is why we look at a heat pump first.

What it is

A failing or end of life boiler is replaced with a modern condensing unit. Efficiency improves against old plant, and reliability improves more.

We treat boilers and heat pumps as alternatives to one another rather than as two things to do, so you will only ever see one of them recommended for a given building.

Does it suit you

It suits buildings where the existing plant is at or near failure, where a heat pump has been ruled out on flow temperature, capacity or space, and where heat is needed now.

It suits you less where the plant has years left, or where a heat pump is viable and a replacement now would rule it out for another fifteen years.

What decides it
  • -The age and condition of the existing plant.
  • -The flow temperature the building needs, which is the same question that decides whether a heat pump would work.
  • -Flue routes, plant room space and gas supply.
  • -Any carbon commitment that a new fossil asset would sit against.
Cost and saving

The figures Meridians models with. Your building replaces them with its own data as soon as we have it.

Installed costProvisional
from 150 to 350 per kW of output
Provisional, scaled from domestic installed costs rather than commercial proposals.

The figure above is provisional. It is scaled from domestic data rather than taken from commercial proposals, so treat it as an indication rather than a price.

Cost leads with the low end. Payback leads with the longer one.

In the application

The card a client sees, rendered by the application itself.

Illustrative building, not a real siteThe measure card, as a client sees it
Boiler replacement
Asset life
Provisional estimateThis is a provisional estimate based on typical costs, not on quotes for your building. The range is wide on purpose. A quote will tell you what it actually costs.
Indicative cost
From £12,000, typically £17,500 to £24,000

Modelled from consumption estimated from floor area and a benchmark, so an installer survey may land elsewhere in these ranges.

  • No gas consumption is held for this building, so no saving has been produced.
What goes wrong
  • -The replacement is like for like, so it is sized to the old boiler rather than to the building's actual heat loss.
  • -A heat pump is never properly assessed, and the option closes for the life of the new plant.
  • -Controls are left as they were, so the new boiler runs on the old strategy.
Does it move a rating

Heating plant efficiency is a modelled input to a non domestic EPC, so a replacement can move a rating.

What the minimum standard requires

Related

See it on your buildings

Add your sites and their energy data, and you get a modelled range for this measure at each one rather than a market average.

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