~~NOCACHE~~ //This page last changed ~~LASTMOD~~ visits: {{counter|today| time| times}} today, {{counter|yesterday| time| times}} yesterday, and {{counter|total| time total so far| total times}}// =====Heatpump Model and Installer Research===== August 2022, we are looking into buying and installing one or more heatpumps for our oil-heated forced-hot-water home to reduce our winter oil use and to give us some cooling during the summer heat/humidity. ===Heat pump installers=== |< 100% 5% 20% 25% - >| ^Commenter^Company^Contact info^Comments^ |AS MS WR|NETR Heating and Cooling Systems (Woburn)|https://www.netrinc.com/ 781-933-6387 |Good tech service & knowledgeable technicians| |MM NA|Muirfield Electric (Ayer)|https://muirfieldmechanical.com/ 978-263-7130|did what they said they'd do, on schedule, middle-of-road price, no extra fuss| |RK|128 Heating and Plumbing (Wakefield)|https://www.128plumbing.com/ 781-670-3261|(annoying website, can't get rid of stuff covering info)| |AW|Central Cooling and Heating (Woburn)|https://centralcooling.com/ 800-236-8725|they did rebate paperwork, good company. | |RR CL JL|Total Comfort (Burlington)|https://www.totalcomfortmech.com/lexington 781-999-1275, 781-697-9016|Good consultation, communication. helped w/MassSave| |JL MA|NetZero Heating and Air Conditioning (Billerica)|https://netzerohvac.net/ 888-306-3893| | |WT|New England Ductless (Boston)|https://www.newenglandductless.com/ 781-995-2665|Did MassSave paperwork. Charges $750 for Manual-J (detailed technical assessment)| | |Homeworks Energy| |met with Brian 8/18/2022, got quote| | |Tetra| |met virtually with Parish 8/19/2022, got quote| ===Heat pump devices=== |Mitsubishi|high demand, long lead times (8+ months?)| |Bosch| |Daikin| |LG|One Lex List member reported issues with non-LG thermostat; system would stay on, but this might be related to the usage learning curve; pressure relief valve issue; be sure to verify experience of installers and techs| |Samsung|Sold/installed by Homeworks| |Gree|Sold/installed by Tetra| Note that whatever heat pump you choose, to get rebates, it has to be on the MassSave list, see: [[https://www.masssave.com/saving/residential-rebates/air-source-heat-pumps/heat-pump-qualified-list]] ====Concerns to address==== * Will your electrical feed need to be upgraded? (If you have 200 Amp service, will that be enough to support one or more heat pumps?) * Temperature range. Make sure your units can handle the temps in our area (eg, -20 to 110F) * Will the unit work with your existing thermostat or must it be replaced? * Will (and if so how will) heat pump work with existing home heating system? * Verify experience of Installers and Tech support ====Ideas==== * Get wall units for rooms with doors you can close (to isolate heat/cool to the room) * Heat pump for your hot water. will chill your basement if it's in the basement ---- ====Analysis & Comparison, heat pump vs oil boiler==== We got a quote from a company for the cost of a whole-house solution. There are two rebates available to us, approx $5k since we're going whole-house, and $10k if we also sign an agreement that we will only use oil heat in an emergency. Description of quoted system: TBD ===Assumptions=== We have an oil-fueled boiler forced hot water heating system. We have a single window air conditioner that the heat pumps would replace. Here are the cost factors for our situation. Assuming for the purpose of this analysis: * Energy costs stay the same over the analysis period (oil and electricity) * Maintenance costs stay the same over the analysis period * We are not considering electricity savings by using heat pumps over the one window air conditioner we're using ===Cost analysis=== ,"Homeworks Whole house","Tetra Whole house","Oil heat only Whole house" Condensers,20k & 20k,24k & 24k, Heads,"7k, 12k","9k, 12k", ,"7k, 7k, 9k","9k, 9k, 9k", Manufacturer,Samsung,Gree, Works to temp,,-22F, Manual J?,,"Yes, no cost", Wifi to heads?,,Yes , Service?,1st yr included then pay,"1st yr included, then thru installer",annual cleaning "FYI, Heat loan: 7 yrs no int, monthly:",214.29,115.37, '===TOTAL COST CALCULATION===,,, Eqpt & installation,28000,19691,0 whole house rebate,10000,10000,0 EQUIPMENT & INSTALL cost,18000,9691,0 heatpump MAINTENANCE/yr after 1st yr,535,,0 oil boiler MAINTENANCE/yr,200,200,200 electric svc incremement $/mo (est),100,100, gallons oil/year (est),100,100,700 oil cost/gal (est),4,4,4 ENERGY COST/yr,1600,1600,2800 ,,, TOTAL COST END OF YEAR,,, 1,19800,11491,3000 2,22135,13291,6000 5,29140,18691,15000 6,31475,20491,18000 7,33810,22291,21000 8,36145,24091,24000 9,38480,25891,27000 10,40815,27691,30000 15,52490,36691,45000 20,64165,45691,60000 25,75840,54691,75000 IF YOU HAVE COMMENTS on this, please let us know! Send to: both@toku.us and THANK YOU for your input.