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--- heatpump_research [2022.08.18 14:28] – Steve Isenberg
+++ heatpump_research [2022.08.19 11:54] (current) – [Heatpump Model and Installer Research] Steve Isenberg
@@ Line 14: / Line 14: @@
 |<fs x-small>JL MA</fs>|NetZero Heating and Air Conditioning (Billerica)|https://netzerohvac.net/ 888-306-3893| |
 |<fs x-small>WT</fs>|New England Ductless (Boston)|https://www.newenglandductless.com/ 781-995-2665|Did MassSave paperwork. Charges $750 for Manual-J (detailed technical assessment)|
-| |Homeworks Energy|
+| |Homeworks Energy| |met with Brian 8/18/2022, got quote|
+| |Tetra| |met virtually with Parish 8/19/2022, got quote|
 ===Heat pump devices===
@@ Line 21: / Line 22: @@
 |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|
+|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]]
@@ Line 46: / Line 48: @@
 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.
-”Heatpump” is cost of heat pumps installed.  ”Heatpump w/agreement” is when we also sign an agreement saying we will only use oil to heat the house in an emergency.
+Assuming for the purpose of this analysis:
-| |Heatpump|Heatpump w/agreement|Oil Boiler only (current situation)|
-|Equipment|23000|18000|0|cost of added equipment|
-|Maintenance/yr|835|200|
-|Electricity increment estimate/yr|1200|1200|0|assuming extra $100/month for heat pumps|
-|Est cost oil, 700gal/yr, $4/gal|100 gal@$4/gal=400 |100 gal@$4/gal |700 gal@$4/gal=2800|//need oil to heat hot water//|
-Also 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
@@ Line 60: / Line 56: @@
 <csv hdr_rows=1>
-,Heatpump,heatpump w/big rebate,Oil
-**EQUIPMENT cost**,23000,18000,0
+,”Homeworks
-heatpump maintenance,635,635,
+Whole house”,”Tetra
-oil boiler maintenance,200,200,200
+Whole house”,”Oil heat only
-**MAINTENANCE cost/yr**,835,835,200
+Whole house”
-electr incremement $/mo,100,100,
+Condensers,20k & 20k,24k & 24k,
-gallons oil/year,100,100,700
+Heads,”7k, 12k”,”9k, 12k”,
-oil cost/gal,4,4,4
+,”7k, 7k, 9k”,”9k, 9k, 9k”,
-**ENERGY COST/yr**,1600,1600,2800
+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**,,,
+TOTAL COST END OF YEAR,,,
-,25435,20435,3000
+,19800,11491,3000
-,27870,22870,6000
+,22135,13291,6000
-,35175,30175,15000
+,29140,18691,15000
-,47350,42350,30000
+,31475,20491,18000
-,59525,54525,45000
+,33810,22291,21000
-,71700,66700,60000
+,36145,24091,24000
-,83875,78875,75000
+,38480,25891,27000
+,40815,27691,30000
+,52490,36691,45000
+,64165,45691,60000
+,75840,54691,75000
-</csv>
-Our conclusion based on the information we have obtained so far: We will NOT install heat pumps.
+</csv>
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 and THANK YOU for your input.