Green Building Forum - Seasonal Performance Factor for RHI - ASHP Tue, 19 Dec 2023 05:34:52 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Seasonal Performance Factor for RHI - ASHP http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206515#Comment_206515 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206515#Comment_206515 Mon, 04 Aug 2014 13:53:30 +0100 shuff27
Not coincidentally I've just received a mailshot from Home Survey Reports Ltd ('recommended partner' of my installer Ice Energy) offering to carry out the report for £200+VAT. It provides a sliding scale of increased RHI payments, starting at £302 over 7 years for an SPF of 2.7. This is based on a house using 20,000 kwh p.a.; the EPC for my house estimates demand at 26,000 kwh p.a.

Anyone in a position to advise/guesstimate whether my installation (Ecodan 14kw heat pump running wet UFH downstairs, domestic hot water, rads - rarely required - in bedrooms) is likely to have a SPF higher than 2.5?

And I wonder what this company actually does to produce its report - if it's anything like a SAP I expect not a lot!

Thanks in advance,
shuff27 (newbie member)]]> Seasonal Performance Factor for RHI - ASHP http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206518#Comment_206518 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206518#Comment_206518 Mon, 04 Aug 2014 14:40:26 +0100 Chris P Bacon Seasonal Performance Factor for RHI - ASHP http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206519#Comment_206519 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206519#Comment_206519 Mon, 04 Aug 2014 14:58:37 +0100 Triassic
This might be worth a read. https://heating.mitsubishielectric.co.uk/News/Pages/Independent-year-long-trials-prove-real-world-performance-of-renewable-Ecodan%C2%AE.aspx]]> Seasonal Performance Factor for RHI - ASHP http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206522#Comment_206522 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=12398&Focus=206522#Comment_206522 Mon, 04 Aug 2014 15:39:07 +0100 JonG
To provide the information to support an application to OFGEM, a full elemental fabric heat loss assessment is required, believe me £200 is a fair refection of the work involved, bear in mind though that the tariff relates to the flow temp required in the worst performing room, so you might not know if you are due an increase until after the assessment.]]>