| Name | MICHAEL HOROWITZ |
|---|---|
| Email address | Michaelh@pivot.net |
| Phone number | 8024988210 |
| Where is your project located? | United States |
| State/Province | New Jersey |
| Nearest City or County | Cumberland |
| How would you like use to size your system? | Size by heating demand load and design temperature |
| Estimated Heating Demand | 5.86 kW ( 20000 BTU/hr ) |
| Output of selected heat pump at design temperature (-30C/-22F maximum) | 6.5kW |
| Percentage of demand load requirement produced by heat pump at design temperature (-30C/-22F maximum) | 111% |
| External backup boiler required | 6kW |
| Internal backup boiler required if using Alt Source tank | 7.5kW |
| Heating Demand Load | 20000 |
| Heating Demand Load Unit | BTU/hr |
| Selected temperature scale | Fahrenheit |
| Heating Design Temperature | 15° F |
| Arctic heat pump required | 035ZA/BE |
| Comments | If you listed output on your website by ambient DB temp, output by delivered water temp, and associated COP, that would help, a lot. Your inverter is variable, which would mean that you should have performance curves at different Hz, right? I intend to use the 035ZA/BE-R32 (35,000 BTU), but need the performance. I do NOT want back up and want the unit to still deliver at near record lows, and to be capable of producing hot water. My design temps are 15F and 95F, but I'd like to heat to 70F down to -5. My UA is 309 btu/h/degF. I've pulled a Manual J from CoolCalc. 75deg delta-T x 309 = 23,175 btu/h @ -5, with some extra capacity for my domestic hot water. I intend to use chilled and heated water in fan coils, as well as having a radiant floor for the depth of winter. Radiant slab will have lower temps. not sure of fan coil temps. |
| Contact by Arctic Agent | No |
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