{"id":161,"date":"2021-04-06T19:28:52","date_gmt":"2021-04-06T19:28:52","guid":{"rendered":"http:\/\/netzeroenergy.org\/content\/?page_id=161"},"modified":"2021-04-15T17:22:27","modified_gmt":"2021-04-15T17:22:27","slug":"heat-pump","status":"publish","type":"page","link":"https:\/\/netzeroenergy.org\/content\/heat-pump\/","title":{"rendered":"Heat Pump"},"content":{"rendered":"\n<p class=\"has-medium-font-size\"><strong><span style=\"text-decoration: underline;\">Two Stage Heat Pump For Both Heating And Cooling<\/span><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"821\" src=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2.jpg?resize=616%2C821&#038;ssl=1\" alt=\"\" class=\"wp-image-426\" srcset=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=816%2C1088&amp;ssl=1 816w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=60%2C80&amp;ssl=1 60w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?w=907&amp;ssl=1 907w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"821\" src=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769.jpg?resize=616%2C821&#038;ssl=1\" alt=\"\" data-id=\"423\" data-full-url=\"https:\/\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg\" data-link=\"https:\/\/netzeroenergy.org\/content\/heat-pump\/pxl_20210407_184234769\/\" class=\"wp-image-423\" srcset=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg?resize=816%2C1088&amp;ssl=1 816w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg?resize=60%2C80&amp;ssl=1 60w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184234769-rotated.jpg?w=907&amp;ssl=1 907w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"821\" src=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716.jpg?resize=616%2C821&#038;ssl=1\" alt=\"\" data-id=\"424\" data-full-url=\"https:\/\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg\" data-link=\"https:\/\/netzeroenergy.org\/content\/heat-pump\/pxl_20210407_184347716\/\" class=\"wp-image-424\" srcset=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg?resize=816%2C1088&amp;ssl=1 816w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg?resize=60%2C80&amp;ssl=1 60w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184347716-rotated.jpg?w=907&amp;ssl=1 907w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"616\" height=\"821\" src=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429.jpg?resize=616%2C821&#038;ssl=1\" alt=\"\" data-id=\"425\" data-full-url=\"https:\/\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg\" data-link=\"https:\/\/netzeroenergy.org\/content\/heat-pump\/pxl_20210407_184406429\/\" class=\"wp-image-425\" srcset=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg?resize=768%2C1024&amp;ssl=1 768w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg?resize=225%2C300&amp;ssl=1 225w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg?resize=816%2C1088&amp;ssl=1 816w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg?resize=60%2C80&amp;ssl=1 60w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184406429-rotated.jpg?w=907&amp;ssl=1 907w\" sizes=\"auto, (max-width: 616px) 100vw, 616px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p class=\"has-medium-font-size\"><strong><span style=\"text-decoration: underline;\">Consideration for Two Stage Heat Pumps<\/span><\/strong><\/p>\n\n\n\n<p>Two speed heat pumps are great. Typically they work at 66% of rates capacity and 100% of rated capacity. The stages are controlled by a solenoid valve on the side of the compressor which controls how much refrigerant gas the compressor has to compress (the speed of the compressor does not change). A two stage heat pump will probably have a variable speed blower motor (ECM &#8211; electronically commutated motor), this allows to blower to slowly ramp up to speed and slowly run down, it also allows the blower to operate at two different speeds to complement the two stages of the compressor.<\/p>\n\n\n\n<p>Size the well pump for the mid point demand. For example, our Flordia Heat Pump ES061 has two stages, stage 1 it requires a flow of 7 gallons per minute (7 GPM) and stage 2 a flow of 14 GPM. In this case the well driller should be told to size the pump for the most efficient flow at 10 GPM, but be capable of 14 GPM. Do not assume that contractors will know to do this. The most efficient pump is the smallest pump able to do the job, over sizing the pump makes it run less efficiently.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><span style=\"text-decoration: underline;\"><strong>Two Stage Water Supply<\/strong><\/span><\/p>\n\n\n\n<p>Two stage heat pumps should have a two stage water supply. You may be told this is unnecessary, because the heat pump is more efficient with the greater flow so the higher rate can be used. It is true that the heat pump will be more efficient, but the system as a whole will not be, this is because of the extra energy required to pump more water.<\/p>\n\n\n\n<p>By using two solenoid valves each in series: with a restrictor valve, and in parallel with each other, it is possible to control the flow of water based on which stage the compressor is running at. The solenoid valves are activated by Y1 and Y2 (compressor stage 1, stage 2) wires from the zone controller.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"750\" src=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Heat-Pump-Water-Supply.jpg?resize=500%2C750&#038;ssl=1\" alt=\"\" class=\"wp-image-355\" srcset=\"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Heat-Pump-Water-Supply.jpg?w=500&amp;ssl=1 500w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Heat-Pump-Water-Supply.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Heat-Pump-Water-Supply.jpg?resize=53%2C80&amp;ssl=1 53w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Two Stage Heat Pump For Both Heating And Cooling Consideration for Two Stage Heat Pumps Two speed heat pumps are great. Typically they work at 66% of rates capacity and 100% of rated capacity. The stages are controlled by a solenoid valve on the side of the compressor which controls how much refrigerant gas the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-161","page","type-page","status-publish","hentry"],"jetpack-related-posts":[{"id":157,"url":"https:\/\/netzeroenergy.org\/content\/geothermal-introduction\/","url_meta":{"origin":161,"position":0},"title":"Introduction","author":"Mark Bartosik","date":"April 6, 2021","format":false,"excerpt":"Our Geothermal Heating\/ Cooling System We have a two-stage ground source heat pump for our heating (in winter) & cooling (in summer). In this \"Geothermal\" section, you can learn more about the various aspects of installing one yourself. It's not so hard! Two Stage Heat Pump","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/PXL_20210407_184134658-2-rotated.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":160,"url":"https:\/\/netzeroenergy.org\/content\/well\/","url_meta":{"origin":161,"position":1},"title":"Well","author":"Mark Bartosik","date":"April 6, 2021","format":false,"excerpt":"Well Installation We have two wells. The source well (on the right) is 56' deep, the diffusion well is about 35' deep located about 70' to the left. The wells have a 4\" diameter casing. There is a submersible well pump with a 3\/4 HP 230v 3-phase motor (a 1\/2\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Well2-1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":156,"url":"https:\/\/netzeroenergy.org\/content\/thermal-pool-heating\/","url_meta":{"origin":161,"position":2},"title":"Thermal (Pool Heating)","author":"Mark Bartosik","date":"April 6, 2021","format":false,"excerpt":"Our latest Project - A Solar Thermal system for Pool Heating We have an above ground 10K Gallons outdoor pool, that we want to extend the usability of into the shoulder months of May and October. Plus, we would like the temperature of the water in both spring & summer\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/solar-pool.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/solar-pool.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/solar-pool.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/solar-pool.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/solar-pool.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":62,"url":"https:\/\/netzeroenergy.org\/content\/geothermal-heating\/","url_meta":{"origin":161,"position":3},"title":"Geothermal Heating","author":"Mark Bartosik","date":"April 6, 2021","format":false,"excerpt":"","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":140,"url":"https:\/\/netzeroenergy.org\/content\/solar\/solar-introduction\/","url_meta":{"origin":161,"position":4},"title":"Our Solar Powered Life","author":"Mark Bartosik","date":"April 6, 2021","format":false,"excerpt":"Over time, we have installed 4 solar systems, all of which are different types of solar, the first one uses building-integrated tiles which means they look just like a regular concrete tile roof but \u201cshiny\u201d (see below for pics from the installation), the second array is a traditional solar panel\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Building Integrated Solar Tiles on front of house","src":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Solar-Intro.jpg?fit=600%2C450&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Solar-Intro.jpg?fit=600%2C450&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/Solar-Intro.jpg?fit=600%2C450&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":165,"url":"https:\/\/netzeroenergy.org\/content\/walls\/","url_meta":{"origin":161,"position":5},"title":"Walls","author":"Mark Bartosik","date":"April 6, 2021","format":false,"excerpt":"The Original Wall The walls are typical 2x4\" construction. Since this house was built back in 1960 the level of insulation was poor, when we cut open the sheet rock we found 2\" thick insulation in a 3.5\" cavity. We guess that we should have been lucky to have any!\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/wall_cross_section_sill-1.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/wall_cross_section_sill-1.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/netzeroenergy.org\/content\/wp-content\/uploads\/2021\/04\/wall_cross_section_sill-1.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/pages\/161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/comments?post=161"}],"version-history":[{"count":4,"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/pages\/161\/revisions"}],"predecessor-version":[{"id":761,"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/pages\/161\/revisions\/761"}],"wp:attachment":[{"href":"https:\/\/netzeroenergy.org\/content\/wp-json\/wp\/v2\/media?parent=161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}