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SpecSenville Leto 9,000 BTU 115VDella Serena 9,000 BTU 115V
PhotoSenville Leto 9,000 BTU 115VDella Serena 9,000 BTU 115V
Our scoreSCORE6.4 / 10SCORE7.3 / 10
Our takeAn efficient 115V cooler for a small room with modest heat, 6,500 BTU/h at 5°F, and a warranty that needs a licensed install.Della publishes no cold-weather figures for either 9K, so we can't tell you how it heats on a cold night. The 230V version is the more efficient heater on paper.
Nominal size9,000 BTU9,000 BTU
Voltage115V115V
Rated heat at 47°Fn/a9,800 BTU/h
Heat at 17°F8,000 BTU/hn/a
Heat at 5°F6,500 BTU/hn/a
Lowest heating temp5°F5°F
SEER221.522best
HSPF2 (Region IV)n/a8.5
Install typeFlareFlare
Line set in boxn/a16.4 ft
Max line run82 ftbest65.6 ft
Warranty covers owner installNoConditional
Warranty, parts5 yrn/a
Warranty, compressor5 yrn/a
ENERGY STAR Cold ClimateNon/a
ENERGY STARYesn/a
RefrigerantR-454BR-32
Watch out forAmazon Leto listings don't state refrigerant; current R-454B pairings are SENL-xxCD-OL + SENL-xxCD-ILL, older R-410A ones end /OY + /IY. Senville's FAQ says no to owner installs, and the warranty requires a licensed HVAC contractor.The listing says "Pre-Charged", but Della's FAQ says the lines are not pre-vacuumed; it is a flare-and-vacuum install. Della's printed manual says the extended warranty is for professional installation; the current web policy gives registered DIY installs replacement parts at Della's discretion. Screenshot it the day you buy. Della also sells Vario, Optima Pro, Hyper Heat and older R410A lines; most owner reports are about those.
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