{"product_id":"heat-pumps-field-guide-jd-r-lawson-9798195776985","title":"Heat Pumps Field Guide: The Complete Technician's Manual for A2L Refrigerants, Cold-Climate Systems, Defrost Diagnostics, and the New Era of HVAC: Sto","description":"\u003cp\u003e\u003cb\u003eMaster the 2026 A2L Transition and Become the Go-To Technician for Modern Heat Pump Troubleshooting.\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eThe HVAC industry is facing its biggest shift in decades. Heat pumps are outselling gas furnaces, A2L refrigerants are mandatory, and cold-climate technology is now mainstream. Yet, 50% of the experienced workforce is retiring, taking their institutional knowledge with them.\u003c\/p\u003e\u003cb\u003eHeat Pumps Field Guide\u003c\/b\u003e is the fifth book in \u003cb\u003eJD's HVAC Professional Series\u003c\/b\u003e, specifically engineered for the journeyman technician who wants to win the next decade of their career.\u003cp\u003e\u003cb\u003eWhy This is a \"Must-Read\" for Every 2026 HVAC Pro: \u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHIGH-IMPACT DIAGNOSTICS: \u003c\/b\u003e Stop guessing. Master the diagnostic logic for \u003cb\u003evariable-speed inverters\u003c\/b\u003e, \u003cb\u003ereversing valve internal leaks\u003c\/b\u003e, and \u003cb\u003edefrost cycle failures\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eA2L REFRIGERANT MANUAL: \u003c\/b\u003e Stay compliant and safe. This guide covers the specific spark-resistant tools and handling rules for R-454B and R-32.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCOLD CLIMATE DOMINANCE: \u003c\/b\u003e Learn why \"heat pumps don't work in the cold\" is a statement about 2010 technology. Master \u003cb\u003eEVI technology\u003c\/b\u003e and \u003cb\u003eManual J sizing\u003c\/b\u003e for systems that thrive in Minnesota winters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eREVENUE \u0026amp; SALES MASTERCLASS: \u003c\/b\u003e Use the \u003cb\u003eInflation Reduction Act (IRA)\u003c\/b\u003e tax credits and utility rebates as a competitive edge to close $18,000 jobs while others are stuck quoting basic equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eInside, You'll Get Field Deliverables in Every Chapter: \u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e24-Point Commissioning Checklist\u003c\/b\u003e to protect your warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDefrost Diagnostic Flowchart\u003c\/b\u003e to isolate failures in 20 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eA2L Transition Checklist\u003c\/b\u003e for legal and safety compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCharge Verification Decision Tree\u003c\/b\u003e for heating mode accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eAbout the Author: \u003c\/b\u003e JD R. Lawson is a Licensed Mechanical Engineer and field educator who writes for the tech standing in the driveway at midnight. His guides are used by technicians across the globe to rebuild their diagnostic frameworks for the modern era of HVAC.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDon't let the 2026 transition cost you another callback or a lost sale. Scroll up and grab your copy of the Heat Pumps Field Guide today.\u003c\/b\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Jd R. Lawson\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9798195776985\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independently Published\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 05\/22\/2026\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 158\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.48lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.34d","brand":"Jd R. Lawson","offers":[{"title":"Paperback","offer_id":48997897797887,"sku":"9798195776985","price":18.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.whiterainbookhouse.com\/products\/heat-pumps-field-guide-jd-r-lawson-9798195776985","provider":"WR Book House","version":"1.0","type":"link"}