Della · Single-Zone
12K1VRH-20S-JA-I+O
~$770approximate retailer price at last check, equipment only
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Best forValue-focused cooling for bedrooms and offices in moderate climates.
Della is the tier below Senville and Pioneer: an Amazon-native brand with real sales volume and a broadly positive owner record across the Motto 12k family — but thinner engineering documentation. The current Motto runs eco-friendly R-32, posts a legitimate 20 SEER2, works with Alexa/Wi-Fi out of the box, and undercuts the Senville LETO by $30-$100. Heating is where the honesty gap shows: Della markets a bare '8 HSPF' figure without clear HSPF2 region labeling, and the 5°F floor makes it a cooling-first unit. The 'lifetime parts' warranty headline carries fine print worth reading twice — full coverage requires registration within 100 days and proof of HVAC-licensed installation, and support is email-based with mixed response reports. Owner reviews praise value and quiet operation (27 dBA); the recurring complaint is instructions that overstate how DIY-able the install is. Fine as a value play for a bedroom or office; think harder if it must heat all winter.
No current listing on NEEP's cold-climate heat pump list. Della rates it to keep running down to 5°F; without a listing there's no certified 5°F capacity figure to check that claim against.
More than you'd expect: a legitimate 20 SEER2 inverter unit on a 115V circuit, Wi-Fi with Alexa and app control included at no extra cost, 27 dBA bedroom-quiet indoor operation, and a 16-ft lineset plus drain hose in the box. The Motto family has a deep owner record with solid sentiment, so there's real volume behind it — Della is marketplace-native but not anonymous.
It exists, but read the fine print: the enhanced tier requires documented installation by an HVAC-licensed tech plus registration within 100 days. Self-installers fall back to lesser coverage, and support is email-only with mixed responsiveness reports. There's a 30-day money-back window, which is your best protection against out-of-box defects.
Only as supplemental heat. The floor is 5°F and the heating spec is a vague '8 HSPF' without clear HSPF2 region documentation, so plan on it covering shoulder seasons and mild winter days while something else handles deep cold. It's fundamentally a value cooling unit for bedrooms and offices in moderate climates.
Current R-32 — cheap, widely available, and not facing phase-out, which is a quiet advantage over the R410A stock still being sold in this class. Any future recharge or repair will use refrigerant your tech already carries.
Standard flare fittings with a required vacuum pull — not quick-connect DIY — using the included 16-ft copper lineset and 6.5-ft drain hose, on a dedicated 115V circuit. If you want the full warranty tier, that vacuum pull needs to be done by a licensed installer whose details you keep on file.
Della · Single-Zone
~$780
Buyers with a 230V circuit who want more efficiency and a lower heating floor than Della's 115V units, and are comfortable doing a flare-and-vacuum install.
Della · Single-Zone
~$850
Budget buyers who already own (or will rent) a vacuum pump and want maximum cooling per dollar over install convenience.
Della · Single-Zone
~$1,250
Cold-climate buyers who want a lower price than the NEEP-listed brands and will accept the maker's own claims about cold-weather output until certified numbers exist.