Islandaire EZMB Monobloc Heat Pump in Denver
Year-round heating and cooling in one wall-mounted unit — no condenser outside, no refrigerant lines, no ductwork. Built for condos, lofts, HOA buildings, historic homes and any room where an outdoor unit isn’t allowed or won’t fit.
The Islandaire EZMB is a “monobloc” (all-in-one) heat pump: the compressor, both coils and both fans live inside one slim 39¼” wide cabinet that hangs on an inside wall. Two 8-inch openings through that wall let it breathe outdoor air, and the outside of the building only shows two small louvered vents. Mini-Splits by Joseph installs the EZMB across Denver, the Front Range and Colorado’s mountain towns for homeowners, condo owners, landlords and property managers who need real heating and air conditioning where a regular mini-split isn’t an option.
Why we recommend the EZMB monobloc
For most Colorado homes, our first recommendation is still a cold-climate ductless mini-split. But we regularly walk into spaces where a mini-split simply can’t go. These are the situations where we suggest the EZMB:
No outdoor unit allowed
HOA rules, condo declarations, landmark districts and high-rise façades often prohibit condensers on walls, balconies or roofs. The EZMB keeps everything indoors — the exterior only shows two 9-inch vent hoods.
No place for line sets
Concrete buildings, finished interiors and tall walls make refrigerant line runs expensive or impossible. A monobloc needs no line set, no vacuum and no refrigerant work on site.
Replacing window or wall ACs
It’s a clean upgrade from window units, old through-the-wall air conditioners and PTACs — and it adds heat pump heating, not just cooling.
Heat pump + backup heat
DC inverter heat pump heating, plus a built-in 1,000 W electric heater on the 230V model for Denver’s coldest nights.
Quiet and tidy
32–46 dBA, a self-evaporating condensate system that minimizes drain water in cooling mode, a metal housing, remote control and an optional Wi-Fi app.
Fast install
Two core holes, a wall bracket and a dedicated 15 A, 230V circuit. Most installs are completed in a single day.
Where the EZMB fits in Colorado
- Denver condos and lofts — Capitol Hill, Cheesman Park, LoDo, RiNo and Golden Triangle buildings where balconies and façades are off-limits.
- Historic and landmark homes — Washington Park, Highland, Congress Park and Curtis Park homes where a visible condenser draws HOA or design-review pushback.
- Apartments, ADUs and rentals — a per-room heat pump the tenant controls, with no shared outdoor equipment.
- Offices, server and IT rooms — dedicated cooling for one space without touching the building’s main system.
- Bonus rooms, garages and additions — when the room is on an exterior wall and running lines to an outdoor unit isn’t practical.
- Mountain condos — ski-town buildings with strict exterior rules, used with a backup heat source for the deep cold.
Honest limits: when we’d suggest a mini-split instead
The EZMB is a problem-solver, not a whole-home cold-climate heat pump. Here’s what we tell every customer before they buy:
- Cold-weather heating drops off. Nominal heating is 9,000 BTU/h at 47°F, 5,500 at 5°F and 5,000 at 0°F. In a Denver cold snap, plan on the built-in heater or your existing heat as backup.
- One room, not a whole house. At 10,000 BTU/h nominal cooling it suits a single bedroom, office or living area.
- Efficiency is good, not top-tier. 16 SEER2 and 7.5 HSPF2. A cold-climate Fujitsu mini-split runs far more efficiently — if an outdoor unit is allowed, that’s usually the better investment.
- It needs an exterior wall with room for two 8-inch openings, 14⅛” apart, between studs and away from windows, gas meters and vents.
Not sure which is right? Compare options in our monobloc vs mini-split vs PTAC guide, or see all of our heat pump installation options in Denver.
Islandaire EZMB specifications
| Spec | EZMB10L9A1S95AA (230V) | EZMB10L5A1S95AA (115V) |
|---|---|---|
| Cooling (nominal / range) | 10,000 BTU/h / 3,000–12,000 | 10,000 BTU/h / 3,000–12,000 |
| Heating at 47°F / 17°F / 5°F / 0°F | 9,000 / 7,000 / 5,500 / 5,000 BTU/h (nominal) | |
| Efficiency | 16 SEER2 · 7.5 HSPF2 | |
| Backup electric heat | 1,000 W built in | Not available |
| Electrical | 230V/1Ph · MCA 14 A · MOP 19 A · 15 A breaker | 115V/1Ph · MCA 13 A · MOP 18 A · 15 A breaker |
| Refrigerant | R32 (factory-sealed) | |
| Sound level | 32–46 dBA | |
| Dehumidification | 2.5 pints/hour | |
| Airflow | 305 CFM high / 188 CFM low | |
| Unit size (W × H × D) | 39.4″ × 23.1″ × 8.07″ (cabinet ~22″ tall on the drawing) | |
| Weight | 93.7 lb net | |
| Wall openings | Two 8″ openings, 14⅛” center to center | |
| Certification | ETL listed | |
Specifications from Islandaire’s EZMB cut sheet (Rev. B); subject to change by the manufacturer.
How we install a monobloc
- Site check — we confirm the wall construction, stud layout, exterior clearances and the electrical panel, and size the unit for the room.
- Approvals — for condos and HOAs we provide the cut sheet, exterior vent details and photos for your board.
- Wall cores — two clean core holes using Islandaire’s template, sleeved and sealed against weather.
- Exterior hoods — low-profile louvered vent hoods on the outside wall.
- Circuit — a dedicated 15 A, 230V circuit (or 115V on the smaller model) to code.
- Mount, start-up and walkthrough — wall bracket, leveling, condensate check, and a walkthrough of the remote, timers and modes.
EZMB installed price in Denver
Installed price: starting at $4,200. That covers the Islandaire EZMB and a standard installation on the first or second story: two 8″ wall cores with sleeves and exterior hoods, mounting, start-up and a dedicated circuit. Harder installations cost more, mainly for two reasons:
- Height. Above the second story, sealing the exterior connections means working from tall ladders, a lift or scaffolding, which adds substantial labor.
- Brick or masonry walls. Coring two 8-inch round holes through brick is slow, difficult work that takes specialized equipment and much more time.
Panel upgrades and long electrical runs are quoted separately. We confirm your exact price at a free on-site estimate. Utility rebate eligibility depends on the program’s current qualifying list — we’ll tell you up front whether this unit qualifies.
Monobloc FAQ
What is a monobloc heat pump?
A heat pump where every component sits in one indoor cabinet. Instead of an outdoor condenser, it exchanges heat with outdoor air through two openings in the wall.
Will an HOA approve it?
Often, yes — the only exterior parts are two small vent hoods, similar in size to a dryer vent. Always confirm with your HOA; we’ll provide the documents they ask for.
Can it heat my room in a Denver winter?
It heats well in mild and cool weather. Below roughly 5°F its output drops, so we pair it with the built-in 1,000 W heater (230V model) or your existing heat for cold snaps.
Does it need a drain?
The self-evaporating system minimizes condensate in cooling mode. A drain hose is still provided, and we route it where needed, especially for heating mode.
Is it better than a mini-split?
No — a cold-climate mini-split is more efficient and handles Colorado winters better. The EZMB wins where a mini-split can’t be installed.
See if a monobloc fits your space
Send us a photo of the wall and the outside of your building, or book a free estimate.