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  • What is the Heat Geek Guarantee?

    £22,000 Heat Pump Disaster That Exposes a Broken Industry

    The Maths Behind Heat Pumps: Why Homeowners Should Demand More From Installers

    Why do you have a buffer vessel with a heat pump?

    MarsDec 28, 202117 March 20226
    Do you need a buffer vessel (or buffer tank) with a heat pump. Graham Hendra shares his thoughts on this subject.
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    What is delta T (ΔT)?

    MarsDec 27, 202112 December 20222
    Graham Hendra explains what the mysterious delta T (ΔT) is when it comes to heat pump systems.
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    What is seasonal coefficient of performance (SCOP)?

    MarsDec 26, 202117 March 20220
    Most heat pump owners are familiar with the term coefficient of performance (COP). Graham Hendra explains the difference between COP and seasonal coefficient of performance (SCOP).
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    Is a heat pump sized in the same way as a fossil fuel boiler?

    MarsDec 25, 202123 June 20250
    Confused about heat pump sizing compared to traditional gas or oil boilers? Graham Hendra clarifies the best approach to correctly size heat pumps for efficient, cost-effective home heating.
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    How can the efficiency of a heat pump exceed 100 percent?

    MarsDec 24, 202117 March 20220
    It’s difficult to understand how a heat pump can have an efficiency of over 100%. Graham Hendra explains how heat pumps are able to achieve these efficiencies.
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    What are the risks of oversizing a heat pump?

    MarsDec 23, 202117 March 20220
    We know that if a heat pump is undersized, this may mean that it will struggle to heat your property, but what are the risks if a heat pump is
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    What is the difference between an EPC certificate and a heat loss calculation?

    MarsDec 22, 202123 June 20250
    Discover the key differences between an EPC certificate and a heat loss calculation with expert insights from Graham Hendra. Sponsored by Auream Energy, this informative video also highlights top solar
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    How does a heat loss calculation help you calculate the size of a heat pump?

    MarsDec 21, 202123 June 20250
    Discover how to choose the perfect heat pump size for your home with expert guidance from Graham Hendra. Thanks to Auream Energy for sponsoring — explore their solar installation services
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    The Graham Hendra Awards

    Graham HendraDec 20, 202120 December 20210
    By now, if you’re a regular reader of my posts, you will know I’m a bit of an egomaniac so it won’t surprise you that I thought I would hold
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    Heat pumps for apartment blocks and whiskey distilleries

    MarsDec 19, 202128 June 20250
    Join us for an insightful interview with Dave Pearson, Group Sustainable Development Director at Star Refrigeration, as he discusses innovative heat pump applications in apartment heating and whiskey distilleries, plus
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