The Heat & Air ReviewDIY HVAC · Owner-reported
Menu
Mini-splitsDehumidifiersWindow & PTACHeatersParts & toolsGuidesComparisonsCompare modelsSizing tool
Compare tool

Compare models side by side

Pick two to four models. The best figure in each row is marked, and every number comes from the maker, NEEP or ENERGY STAR. Copy the URL to share a comparison.

All mini-splits & heat pumps ranked →All dehumidifiers ranked →All window, wall & room units ranked →All heating ranked →All parts, tools & supplies ranked →

SpecPioneer Diamante Pro 24,000 BTU 230VSenville Elite 24,000 BTU 230V
PhotoPioneer Diamante Pro 24,000 BTU 230VSenville Elite 24,000 BTU 230V
Our scoreSCORE7.1 / 10SCORE7.6 / 10
Our take15,600 BTU/h at 5°F for a bigger zone in a climate that stays above about 0°F. We don't have a verified Amazon listing for this size.Makes less at 5°F than the 18K (20,000 vs 22,600) and NEEP files it as centrally ducted; the least-documented Elite size.
Nominal size24,000 BTU24,000 BTU
Voltage230V230V
Rated heat at 47°F24,000 BTU/h24,000 BTU/h
Heat at 17°F17,900 BTU/hbest17,100 BTU/h
Heat at 5°F15,600 BTU/h20,000 BTU/hbest
Lowest heating temp-4°F-22°Fbest
Max heat at lowest temp12,000 BTU/hbest10,200 BTU/h
SEER22125best
HSPF2 (Region IV)9.511best
Install typeFlareFlare
Line set in box16 ft16 ft
Max line run65 ftn/a
Warranty covers owner installYesNo
Warranty, parts5 yr10 yrbest
Warranty, compressor5 yr10 yrbest
ENERGY STAR Cold ClimateNoYes
ENERGY STARNoYes
RefrigerantR-454BR-454B
Watch out forThe older R-410A Diamante Pro Series ends FI19RL (heats to -13°F, 19 SEER2 on the 12K 115V); confirm SI20RL or R-454B. The Diamante Essenza, Diamante Ultra and WYS are different lines with different specs. Registration deadline reads 90 days on the product page and one week after install in the warranty policy; satisfy both.Senville's FAQ says no to owner installs; warranty registration asks for the installing company and invoice. Senville's site lists higher HSPF2 than the AHRI figures on NEEP; we use the certified numbers. No published max line length for the 24K; Senville's page lists 24.0 SEER2 / 11.0 EER2 vs 25.0 / 14.0 on NEEP.
MoreModel detailsOur full reviewView on Amazon →Model detailsOur full reviewView on Amazon →