Senville
Senville makes ductless mini-split systems that heat in winter and cool in summer from the same inverter-driven unit, sized from a single room head to a multi-zone condenser running several rooms at once.

Every category this house makes that Citadel carries, with live product counts.

A mini-split solves one specific problem: a room the existing system was never designed to reach. An addition, a converted garage, a finished attic, a sunroom that sits ten degrees off the rest of the house. Running new ductwork to those rooms is usually the expensive answer. A ductless head on an exterior wall is usually the practical one.
Senville runs inverter compressors rather than the older on-off kind, which means the system modulates to hold a temperature instead of cycling hard to reach it. That is quieter, steadier and cheaper to run, and it is why a single unit covers both winter and summer.
Citadel carries two ranges: single-zone systems for one room, and multi-zone condensers that drive several indoor heads from one outdoor unit. The second is how a whole house gets covered without a duct in it.
Live products at live pricing, priced wholesale-direct.
A curated range, specialist support on every order, and wholesale-direct pricing with no membership tier.
The questions buyers ask most about this house, answered so you can specify with confidence.
Talk to Our TeamAs a rule of thumb, 9,000 BTU covers up to about 400 sq ft, 12,000 BTU up to 550, 18,000 BTU up to 1,000, and 24,000 BTU up to 1,500. Ceiling height, insulation, and sun exposure shift those numbers, so when in doubt size up one step or ask our team for a quick load check.
The LETO and AURA series ship with pre-charged line sets and clear guides, so a handy homeowner can mount the indoor head, hang the outdoor condenser, and connect the lines. Final electrical hookup should be handled by a licensed electrician, and we can connect you with a vetted installer if you would rather hand off the whole job.
Yes, every system on this page is a true heat pump that cools in summer and heats in winter from the same unit. Inverter compressors hold a steady temperature without the on and off cycling of older systems.
Single-zone pairs one indoor head with one outdoor condenser, which is ideal for a bedroom, office, garage, or addition. Multi-zone runs up to five indoor heads from a single condenser, each with independent control, for whole-home comfort without ductwork.
SEER ratings run up to 22 thanks to inverter compressor technology that ramps output up and down instead of switching fully off. Against window units or an aging central system, most owners see a noticeable drop in their energy bill, especially when heating through winter.
Most orders are processed within 1 to 2 business days and arrive by freight within about a week, fully insured, anywhere in the contiguous US. You will receive tracking details the moment your system ships.
Senville backs the compressor for up to 7 years and parts for 5 years, with US-based support and stocked replacements. Keep your install documentation, since registration takes only a few minutes and locks in the full term.





