what are the pump types and sources?
high-efficiency air source heat pump (ashp), air at -20, two-stage ashp, air at -20 degc, high efficiency ashp, air at 0 degc, prototype transcritical co 2 (r744) heat pump with trip, ground source heat pump (gshp), water at 0 degc, gshp, ground at 10 degc, theoretical carnot cycle limit, source -20 degc, theoretical carnot cycle limit, source 0 degc, theoretical lorentzen cycle limit (co 2 pump), return, theoretical carnot cycle limit, source 10 degc
which ones have cop variations of 8.8 at any temperature?
theoretical carnot cycle limit, source 0 degc, theoretical lorentzen cycle limit (co 2 pump), return
which has a cop variation of 35 degrees celsius of 8.8?
theoretical carnot cycle limit, source 0 degc