Keston Boilers feature new boiler installed in Edinburgh flat by Celsius.

Keston Boilers feature new boiler installed by Celsius Plumbing

Author: John Taylor

3rd January 2025

4 mins read

At Celsius Plumbing and Heating, we love a good challenge. Recently, we teamed up with Keston on a project in Edinburgh that proved just how flexible and effective their boilers can be. The job? Replacing an old Vokera Mynute boiler in a tenanted flat.

The Problem and why the Vokera Mynute had to go

The boiler was tucked away in a hall cupboard, nowhere near an external wall.
The Vokera Mynute was a decent boiler when it was first installed back in the early 2000s, but it had become outdated, inefficient, and costly to run. One unique feature of the Mynute was its twin-flue system, designed to vent exhaust gases over longer distances. Unfortunately, most modern boilers without twin-flue capabilities would struggle in the same location, which is why other companies were recommending relocating the boiler to an external wall. This would have meant moving all the water, central heating, gas pipes, and electrics a costly and disruptive process.
Other plumbing firms had told the landlord the boiler had to be moved, but we had a better idea.

The Solution - installing a Keston Combi twin-flue boiler

We approached the problem differently. The Keston Combi 2 boiler was the perfect replacement because it is the only modern boiler on the market with a twin-flue system. This allowed us to reuse the same flue route as the existing Mynute system. The ceiling void above the boiler provided enough space to fit Keston’s 50mm flue pipes, which are much smaller than the 110mm flues used by other manufacturers.

Additionally, Keston’s welded flue design ensures a near-zero risk of leaks at the joints, making it both safe and efficient.

By retaining the boiler’s original location and upgrading the flue system, we delivered a cost-effective, non-disruptive, and future-proof solution for the property.

What made the Keston Boiler a great choice for this Edinburgh flat?

A Straightforward Fit – the Keston boiler’s twin-flue system made installation simple and cost-effective. We didn’t need to rework the plumbing or create a new flue exit, which saved the landlord a fair bit of money.

Improved Boiler Efficiency – this upgrade brought the flat’s heating system into the modern age. The Keston Combi boiler is far more energy-efficient, helping the tenants save on their heating bills.

Less Disruption for Tenants – because we didn’t have to move the boiler or alter the majority of the boiler pipes, the boiler replacement was completed in 1 day. Getting the job done quickly and with minimal fuss is important in tenanted properties.

Celsius Plumbing and Heating were fantastic from start to finish. Other companies said the boiler needed moving, which would have been a nightmare. Celsius came up with a smarter solution, fitting the new Keston boiler seamlessly in the same spot. The work was quick, tidy, and cost-effective, I couldn’t be happier with the result.

Ben | Landlord | Edinburgh

A message from our director

Michael, the Director here at Celsius Plumbing and Heating, shared his thoughts on this boiler replacement:

“In challenging installations like this Edinburgh flat, the Keston boiler allowed us to offer a smarter, more practical solution. The unique twin-flue system is a game changer, especially in properties like this where relocation would have been costly and disruptive. I’d also like to thank the team at Keston boilers for selecting this installation as one of their new case studies. It’s great to get a wee bit of recognition from a leading boiler manufacturer.”

Read the full case study

You can read the full case study over on the Keston website.

More info for Landlords

If you’re a landlord looking for efficient landlord services, see our full range of landlord safety checks and find out how we can support you.

Looking for a reliable company to replace your boiler in Edinburgh?

Celsius Plumbing and Heating has earned the trust of homeowners and landlords in Edinburgh with well over 1,000 positive reviews from satisfied customers.

See Our Track Record: Check out our customer reviews on Trusted Trader and understand why we’re one of the top-rated plumber and heating engineers in Scotland.

Get in Touch: For straightforward, professional help with your boiler, the Celsius team are here to help: