Parley

garden

fios

azek classic composite rails

energy

heat pumps

air to water heat pump AWHP

My use for your air to water heat pump products will be limited to DHW and the existing kitchen/bath radiant loop. That might extend to some kind of wall radiant emitters for the other two bathrooms depending on calculating the load and the availability of products matching the load.

I will set up some monitoring on the existing radiant loop for temperature-in and temperature-out which combined with knowing the flow rate should give me the btu/hr load.

The rest of the house will likely replace 180 degree baseboard emmiters with air to air heat pumps connected to some combination of wall units and air handlers.

29 years ago this was a carefully designed system which heats a 2,700 sf house with high ceilings and lots of windows for ~$1,500/yr @ $2.33/therm. With electricity here @ $0.27/kwh and natural gas @ .07/kwh it will be a big challenge to design a replacement system. Whatever it is will have to spend most of its time in the operating range that gives you a COP of ~4 or else the operating cost penalty will be too great.

I am licensed builder in MA with EPA 608 universal lic. and am a member of the MassSave Heat Pump Installer Network. So far I have had very good results replacing oil steam boilers with cold climate heat pumps connected to air handlers delivering heat through exposed spiral ductwork running in the conditioned space. Tenants are spending almost half of what oil cost to run their systems.

email to Artic on air source hydronic

I am interested in Arctic Heat Pump 035ZA/BE – 29,000 BTU for use in a domestic HW + radiant application. Could you send me submittal sheets and any other details on

Arctic Air to Water Heat Pumps

Domestic Hot Water The AltSource tank is equipped with an optional internal Heat Exchanger (HX) for domestic hot water production. This consists of 200 feet of 1/2” copper piping. Based on 120°F water tank temperatures this 200 ft of ½” OD cooper pipe, 26.2 sq/ft surface area and has a volume of 1.5 total gallons.

Because the efficiency of the heat pump is better at lower water temperatures, we recommend using the internal domestic hot water coil in a pre-heat arrangement. In this diagram the cold water enters the coil from the bottom and exists at about 95% of the tank setting temperature. Following this the warm water then goes to the primary tank or an on-demand water tank where it is topped up a few degrees to reach 120°F or more depending on the application. When sizing a heat pump with domestic hot water load please add about 10,000 BTU per person to the daily load. So, a house with 4 persons would need an extra 40,000 BTU per day. On an hourly bases this would be 1,667 BTU/hour over 24 hours.

What is a flow rate and what should I ask for? Consider how many of these needs you may have simultaneously to determine the maximum flow rate you require. For a home with 1 bathroom, we recommend 6-7 GPM; 2 bathrooms, 8 – 9 GPM; and 3+ bathrooms, 9-11 GPM. What is a flow rate and what should I ask for? Consider how many of these needs you may have simultaneously to determine the maximum flow rate you require. For a home with 1 bathroom, we recommend 6-7 GPM; 2 bathrooms, 8 – 9 GPM; and 3+ bathrooms, 9-11 GPM.

https://plumbestore.com/products/eco-king-52-stainless-steel-coil-tank?variant=40820050100277&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&srsltid=Ad5pg_GvtvxwqGw-r-NdmLPi-dtNOxGVEkE9--PY0lQMW7D3lHV6h7GzU2s

heat pump water heater for HW and radiant

http://www.civil.uwaterloo.ca/beg/archtech/hot_water_heater_furnace.pdf

like this but with heat pump water heater instead

hybrid heat pump algorithms for resis.

https://www.greenbuildingadvisor.com/question/rheem-hybrid-pre-warm-mode-while-in-heat-pump-mode

https://www.nrel.gov/docs/fy14osti/52635.pdf

boiler

Lochinvar 120000 BTU

service 9/12/2019

Suburban Service Westwood 781-769-6694 2hrs $338 $169/hr

drier

whirlpool LU7681XSW2

light bulbs

hallway stairway, all the startrek lights: R7S LED 78MM Bulb Luxvista 5W 3 Way Dimmable LED R7S Base J T3 Type Double Ended Halogen Equivalent
white ceiling reflector lights in mb, stair and kidstudy: Ba15d LED Bulb, New (88LEDs), Ba15d Double Bayonet base, 6W 120v 60W Equivalent, Dimmable
tvroom spots: MR16 LED 2ight Bulb, 90% Energy Saving, 3000K Warm White, 40 degree, AC/DC 12V, 5 Watts, 50W Halogen Bulb Equivalent, GU5.3 Base
mb closet, mirror (maybe kitchen): GU10 COB LED Bulbs, 50W Halogen Bulbs Equivalent, 7W, 550LM, 5000K Daylight White, Dimmable, LED Light Bulbs, MR16 GU10 Base

expresso machine

filter holder 996530029833

fridge

yale appliances 617-825-9253

stove

Bosch model HG18054UC/09 parts select

specs

Bake / broil burner 18,000 / 12,500
front left burner 10,000
back left burner 5,000 
center burner 18,000
back right burner 5,000 
front right burner 15,000