{"id":42,"date":"2024-03-05T20:04:23","date_gmt":"2024-03-05T10:04:23","guid":{"rendered":"https:\/\/pooladvice.au\/?p=42"},"modified":"2024-03-05T20:16:43","modified_gmt":"2024-03-05T10:16:43","slug":"what-is-cop-a-guide-to-understanding-swimming-pool-heat-pump-efficiency","status":"publish","type":"post","link":"https:\/\/pooladvice.au\/?p=42","title":{"rendered":"What is COP? \u2013 A Guide to understanding swimming pool heat pump efficiency"},"content":{"rendered":"\n<p>Like most people you want to get more out of your swimming pool investment and enjoy your pool for a longer swim period.&nbsp; There are generally 3 options for heating a pool and the electric heat pump is the most common in Australia at the moment.<\/p>\n\n\n\n<p>There are two limiting factors to a heat pumps output, 1 is the location of the heat pump and other is heat pumps ability to convert ambient air by way of performance into energy to heat the pool water.<\/p>\n\n\n\n<p>The output or efficiency of the heater is known as <strong>COP<\/strong> or <strong>C<\/strong>o-efficient <strong>O<\/strong>utput of <strong>P<\/strong>erformance.<\/p>\n\n\n\n<p>The COP is the ability of the heat pump to convert energy in to energy out for water heating. &nbsp; The COP on any heat pump can vary depending on; unit design, the position \/ location of the heat pump and the heat pumps ability to source suitable air.<\/p>\n\n\n\n<p>The COP is a sliding scale starting from 0.1 and going up from there.&nbsp; The average COP we see in the pool industry in Australia is 4.0-5.5 in standard heat pumps and 7.5-16.1 when using Inverter heat pumps.&nbsp;&nbsp;<\/p>\n\n\n\n<p>The COP information is generally advertised as Summer Ratings, which doesn\u2019t help when you want your pool heated for the cooler months.<\/p>\n\n\n\n<p>Most heat pumps have a COP of at least 4.0. The higher the COP the less energy the heat pump will use to heat the water.<\/p>\n\n\n\n<p>COP is often promoted as something that looks like this.<\/p>\n\n\n\n<p>COP 5.5 \u2013 Ambient Air 26c Water Temp 27c Humidity 70%<\/p>\n\n\n\n<p>The above simply means that for every single Kilowatt(KW) of energy in, the unit can produce 5.5KW of energy out when the outside air temp is 26 degrees.<\/p>\n\n\n\n<p>So if a heater is advertised as a 11KW unit and the COP is showing as 5.5 the unit would use 2KW of energy per hour to heat the water.&nbsp; i.e. 2.0KW x 5.5COP = 11KW<\/p>\n\n\n\n<p>This is generally not helpful information if you want to heat your pool in winter and you live in Sydney.&nbsp; The question you should be asking is what is the COP in winter?&nbsp; It will typically look like this on a&nbsp; brochure;<\/p>\n\n\n\n<p>COP 4.5 \u2013 Ambient Air 15c Water Temp 27c Humidity 60%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p>The test conditions for the rating of the COP will vary unit to unit, with many brands not mentioning their winter ratings for the simple reason that a 11KW summer rated unit is in fact a 7KW or 8KW winter rated heat pump.&nbsp;&nbsp;<\/p>\n\n\n\n<p>This information can be seen as misleading but it is generally more about getting the right size unit for the pool.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Like most people you want to get more out of your swimming pool investment and enjoy your pool for a longer swim period.&nbsp; There are generally 3 options for heating a pool and the electric heat pump is the most common in Australia at the moment. There are two limiting factors to a heat pumps &hellip;<\/p>\n","protected":false},"author":1,"featured_media":43,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-42","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-swimming-pool-general-information"],"_links":{"self":[{"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/posts\/42","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pooladvice.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=42"}],"version-history":[{"count":1,"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/posts\/42\/revisions"}],"predecessor-version":[{"id":44,"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/posts\/42\/revisions\/44"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pooladvice.au\/index.php?rest_route=\/wp\/v2\/media\/43"}],"wp:attachment":[{"href":"https:\/\/pooladvice.au\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=42"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pooladvice.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=42"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pooladvice.au\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=42"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}