Alde Slimline 2927 Boiler Repair, Service & Efficiency Rating


SAP seasonal efficiency


The Alde Slimline 2927 has a SAP seasonal efficiency rating of 70.0%.

The Slimline 2927 is a Non-Condensing Combi boiler with a maximum power output of 5.8kw that uses Gas as its fuel source.

We recommend that you upgrade to a new, more efficient boiler to help reduce fuel bills and carbon dioxide emissions. Get quotes for a new boiler today


ModelSlimline 2927
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (KW)5.8 - 5.8
Boiler ID4104801
Manufactured From/To1985 - 1991

Get a boiler service or repair by trusted experts

In partnership with

Choose one option

Boiler Repair

British Gas will get your broken boiler back up and running quickly.

  • Transparent prices including all parts and labour
  • 12-month guarantee on repair work
  • Speedy service by a local engineer

Boiler Service

British Gas has a nationwide team of expert engineers that are there to keep your boiler running safely and efficiently for just £99​​.

  • Inspecting your boiler and controls to make sure everything’s safe
  • Opening up your boiler to check internal components
  • Checking for corrosion and leaks in the boiler and your heating system
  • Cleaning the system filter and other parts, if needed
  • Giving you a boiler safety checklist plus advice on energy efficiency
In partnership with

Similar Boilers to the Alde Slimline 2927

(Non-Condensing Gas Combi)

Results ordered by efficiency. Some models may be obsolete.

Alde Slimline 2927 70.0% Efficient

Most Efficient Non-Condensing Gas Combi Boilers

Results ordered by efficiency. Some models may be obsolete.

Radiant RBA CS 30/100 81.1% Efficient
Radiant RMAS 21 E/3S 80.9% Efficient
Radiant RBA CS 30 80.8% Efficient
Radiant RMAS 30 E 80.7% Efficient