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GAH
Guarantees and Accreditation
Guarantee
The guarantee is only valid if the product is installed in accordance with the Technical Installation Manual by an approved/competent engineer using the required test equipment. The complete guarantee form must be returned to GAH. Alternatively please complete the product registration form which can be found in the menu to the left of this page.
Accreditation
SEDBUK is the average annual efficiency achieved in typical domestic conditions, making reasonable assumptions about patterns of usage, climate control, and other influences. The new boiler Building Regulations stipulate that only oil-fired condensing boilers rated band A or band B (A being the highest and most efficient) can be installed.

