Millbrook
FelineVault

 Rated 4.9 Outstanding - Trusted By 8,500+

FelineVaultHeated Cat House

$229.99

$459.99

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  • Stays toasty at -30°F thermos-built shelter
  • Safe 20W pad ferals actually use nightly
  • Outlasts cheap shelters by 3-5 full seasons
  • Dual escape doors keep even skittish ferals safe
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Color: Green

Shape: US

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My tabby used to disappear under the deck every single night once the temperature dropped. Since I set up the FelineVault she hasn't left it — she's curled up inside before I even finish my morning coffee. The transformation has been incredible and I finally stop worrying about her when it freezes.

Cassandra W.Verified Buyer

  • Set it up in minutes: Unfold the FelineVault, stake it down with the floor nails, and plug in the heating pad. No tools, no complicated assembly — just instant shelter your cat can walk right into.
  • Dial in the perfect temperature: Use the 9-speed control to choose a warmth level that suits the weather and your cat's preference. Set the timing switch so heat kicks on automatically during the coldest hours of the day.
  • Let your cat enjoy it season after season: The weatherproof shell, scratch-resistant lining, and reinforced frame do the heavy lifting. Simply wipe it down when needed, fold it flat for storage, and it's ready to go again next winter.
  • FelineVault Heated Cat House (fully assembled frame)
  • Waterproof & Bite-Proof Heating Pad with 9-Speed Temperature Control
  • Power Plug with Timing Switch
  • Floor Nails for Ground Stability
  • User Manual

We offer free shipping on orders over $150. Once your order is dispatched, the estimated delivery time is 7 to 21 business days depending on your location — tracking is emailed as soon as it ships.

Changed your mind? You can return your product within 90 days of delivery for a refund — see our Returns page for the full policy.

Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from Millbrook, the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

Built for Real Winters. Designed for Real Cats.

360° Thermos Insulation

Six-sided foam and reflective insulation traps body heat like a thermos — users measure 50°F+ inside at -30°F out.

Safe, Steady Heat

The 20W thermostatically controlled pad draws about $3-8 per month. MET-listed and bite-proof for 24/7 outdoor use.

FelineVault

Two Escape Doors for Ferals

Two sheltered entries let timid ferals enter without feeling trapped and escape if a predator appears.

Programmable Warmth Control

Nine heat settings plus a programmable timer pre-set warmth for coldest hours, then cut back automatically during the day.

What our 8,500+ Customers say

Based On Real and Honest Experiences

Cassandra W.

My tabby used to disappear under the deck every single night once the temperature dropped. Since I set up the FelineVault she hasn't left it — she's curled up inside before I even finish my morning coffee. The transformation has been incredible and I finally stop worrying about her when it freezes.

Cassandra W.· Verified Buyer
Marcus T.

I manage a small feral colony and the FelineVault held up through two back-to-back snowstorms — I stuck my hand inside after a -20°F night and it was noticeably warmer. The floor nails kept it in place on the windiest nights.

Marcus T.· Verified Buyer
Bridget K.

I was skeptical about a heated outdoor cat house, but the FelineVault proved me wrong. The build quality is serious and the thermostatically regulated pad never gets uncomfortably hot, giving my Maine Coon room to sprawl every night.

Bridget K.· Verified Buyer

Frequently Asked Questions

+156 expertsreviewed it

Most ferals start using it within 3-7 days. Place it near their feeding spot, add straw, and lay a cloth with their scent inside. The dual escape doors are key — ferals avoid single-entrance shelters where they can be cornered.

Colony caretakers in Minnesota measured 43-46°F unoccupied and 53°F+ with cats inside at -20°F to -30°F outside. The 360° foam traps body heat and pad warmth the same way a thermos holds coffee.

The pad draws just 20 watts — like a single LED nightlight — costing roughly $3-8 per month in winter. The built-in thermostat only activates when temperatures drop, so it does not run full-blast all day.

Always use straw — never towels or blankets. Blankets absorb moisture, freeze solid, and can trap cats against icy fabric. Straw wicks moisture and allows burrowing, creating air pockets that improve insulation.

The pad is MET safety listed and thermostatically regulated, capping at approximately cat body temperature. At 20 watts it generates gentle warmth, and colony managers report pads lasting 5-10 years outdoors.

Yes. Fabric-and-Velcro designs absorb moisture at the seams and fail when exposed. FelineVault uses a rigid sealed shell without Velcro seams, so rain and snow shed off before reaching the interior or pad.

Unplugged, the 360° foam outperforms a basic shelter by trapping your cats own body heat in a small enclosed volume. Add extra straw before a storm and the interior stays meaningfully warmer than ambient.

Place FelineVault near their feeding spot, rub a cloth on your cats and tuck it inside, add straw, and sprinkle a few kibble pieces at the entrance. The dual escape doors remove the trapped feeling — most colony managers see first use within a week.
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