About the ratings for 'Fitting thermostatic radiator valves (TRVs)'

All Bloom actions are rated on CO₂ reduction, popularity, easiness and cost. The methodology behind each rating is defined below, along with further rating information for 'Fitting thermostatic radiator valves (TRVs)'.

CO₂ reduction

The average emission reduction resulting from this action in the first 12 months, in kilograms or tonnes.

Popularity

Number of registered Bloom users who have planted this action seed.

Easiness

How easy it is to complete the action, as rated by registered Bloom users.

Please note: during beta testing, this value has been editorially assigned. When enough users have rated an action, this will represent the average user rating

Cost

Average outlay required to initiate an action in £.

For this action:

£8 per valve; DIY will cost you £8 per valve - (£56 for the whole house, based on average 7 radiators) add around £100 if you're getting a plumber to fit them. Saves around £10 a year.

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