Quick answer
OutEquipPro sells six DC-powered air conditioners, and the right one is decided by four questions in this order: how much cooling your space needs (10,000 to 15,000 BTU), where the unit can physically go (roof, wall, split, or under the chassis), whether you need heat (only the Glacier Pro has a heat pump), and what your battery bank can feed.
For most vans and small-to-mid RVs with a standard 14 × 14 in roof opening, the Summit 2 (10,000 BTU, ~45 lb, from $895) is the default. Step up to the Summit 3 (13,500 BTU) for a large or poorly insulated rig, the Glacier Pro for cooling plus a reverse-cycle heat pump, the Skyeline mini-split when the roof belongs to solar, the Summit Flex when the only place for it is a wall, and the new Skyeline UM when you want nothing on the roof at all and can mount under the chassis. Every model uses the same variable-speed DC compressor design, runs from a LiFePO4 house bank, and needs a 100A-continuous BMS on 12V.
| Model | Cooling | Heating | 12V draw (Turbo / Eco / Sleep) | Sound (Sleep / Eco / Turbo) | Weight | Where it mounts | Live price (9/15) |
|---|---|---|---|---|---|---|---|
| Summit 2 | 10,000 BTU (11,000 on 24V/48V) | — | 58 / 29 / 21 A | 40 / 48 / 53 dB | ~45 lb | Rooftop only | from $895 |
| Summit 3 | 13,500 BTU | — | 33–62 A range | 45 / 55 / 65 dB | ~72 lb | Rooftop | $1,895 |
| Summit Flex | 10,000 BTU | — | 58 / 29 / 21 A | 40 / 48 / 53 dB | ~45 lb | Roof (flat) or wall (upright) | check availability* |
| Glacier Pro 12V | 11,500 BTU | Heat pump, 8,500 BTU | 62 / 30 / 22 A | 43 / 50 / 58 dB | ~68 lb | Rooftop | check availability* |
| Glacier Pro 110V | 15,000 BTU | Heat pump, 12,000 BTU | 11 / 6 / 5 A (AC input) | 43 / 50 / 58 dB | ~68 lb | Rooftop | from $1,186 |
| Skyeline (mini-split) | 12,500 BTU | — | 18–62 A range | 35 / 45 / 50 dB | ~73 lb | Wall head + outdoor unit (rear door, roof, or under chassis) | $895 |
| Skyeline UM (under-mount, new) | 12,000 BTU† | — | 65 A rated† | not listed | 69.4 lb† | Under-chassis outdoor + ducted indoor | $1,095 |
* Every Glacier Pro 12V and Summit Flex variant showed “sold out” on the product pages the day this was written — check the page for current stock before planning around either. † Skyeline UM figures are as listed on its product page; it’s new enough that our spec sheet is still catching up. “—” in the heating column means cooling-only: pair it with the OutEquipPro 5 kW diesel heater if you need real heat.
1. What’s the same across the whole lineup (so you can stop comparing it)
Every OutEquipPro air conditioner uses a variable-speed DC compressor, runs from a battery bank rather than an alternator or a charger, and — on 12V — needs a LiFePO4 bank with a 100A-continuous BMS. Those three facts don’t change from model to model, so they aren’t reasons to pick one over another.
- Variable-speed DC compressor. The compressor ramps up and down with demand instead of slamming on at full power. That’s why none of these units needs a soft-start device and why Eco and Sleep draws sit so far below Turbo. Even the Glacier Pro 110V — which takes shore or household AC as its input — uses the same variable-speed DC compressor design internally.
- Battery-bank architecture. The bank powers the unit; alternator, solar, and shore chargers refill the bank. A starter battery is never the supply. The wiring guide explains why.
- 100A-continuous BMS on 12V. A standard 50A BMS trips on a Turbo start. Our own batteries are built around this — the 230Ah runs a 200A continuous BMS, the 460Ah and 630Ah Smart Power Hubs 300A.
- 6 AWG cable and 100A overcurrent protection on every 12V unit (8 AWG / 80A on the 24V Summit 2; 8 AWG / 50A on 48V; 12 AWG / 20A on the Glacier Pro 110V).
- Pre-charged. Every current model ships charged and sealed; there’s no refrigerant work at install.
- Warranty and certification. One year standard on the air conditioner, with a $95 extended-warranty option available within 30 days of delivery; batteries carry five years. All models are FCC, CE, RoHS, and CEC listed.
What does change: cooling capacity, heating, where the unit can physically go, weight, noise, and price. Those are the six questions below.
2. The six-question chooser
Answer these in order — each one eliminates models, and by the fourth you’re usually down to one.
Q1 — How much cooling does the space actually need?
A van, a Class B, or a well-insulated trailer up to the low 20s in feet is 10,000 BTU territory (Summit 2, Summit Flex). A long or poorly insulated rig, a skoolie, a semi sleeper baking in the sun, or a hot-climate full-timer wants the headroom of 12,500–13,500 BTU (Skyeline, Summit 3) — or 15,000 BTU on shore power (Glacier Pro 110V). The BTU sizing guide walks the math; the large-rig guide covers zoning two units.
Q2 — What voltage is your bank?
Most builds are 12V, and every model runs on it. If you’re building 24V or 48V from scratch, the Summit 2 is the model with native 24V and 48V variants — and it’s a genuine upgrade there, not a compromise: 11,000 BTU on either, with Turbo draw falling to 35A (24V) or 18A (48V) and lighter 8 AWG cable. Shore-power rigs that camp plugged in or run a generator can look at the Glacier Pro 110V. Voltage is a fit question, never a better/worse question — the voltage guide sorts it out.
Q3 — Where can the unit physically go?
- A standard 14 × 14 in roof opening with 15 in of clearance above → Summit 2, Summit 3, or Glacier Pro (the Summit 2 fits a 14.1 × 10.3 to 16.5 × 15.7 in opening; the Summit 3 and Glacier Pro need 14.1 × 13.7 in minimum).
- A roof full of solar, or a stealth build → Skyeline (the indoor head goes on a wall, the outdoor unit on the rear door, roof, or under the chassis) or Skyeline UM (everything under the chassis, ducted inside).
- No roof option at all, but a wall or rear door → Summit Flex, which mounts flat on a roof or upright on a wall — never sideways, never on a slope.
The mounting-style guide is the deep version of this question.
Q4 — Do you need heat from the same unit?
Only the Glacier Pro heats: a reverse-cycle heat pump rated 8,500 BTU on 12V (12,000 BTU on 110V) that works down to about 36°F outside and throttles itself below that. Every other model is cooling-only, and the honest answer for real cold is the same for all of them — the 5 kW diesel heater ($349), which is what we’d pair with any unit for freezing nights. Heating an RV without propane is its own guide.
Q5 — How much weight can the roof (or wall) carry, and how low must the profile be?
The Summit 2 and Summit Flex are the lightweights at ~45 lb; the Summit 2 is also the lowest rooftop profile in the range at 6.3 in tall. The Glacier Pro (~68 lb, 7.1 in) and Summit 3 (~72 lb, 7.5 in) are larger units that want a solid roof. A thin cargo-trailer roof needs an interior support frame under any of them. The split and under-mount units put their heaviest component (52–56 lb) somewhere other than overhead.
Q6 — Budget, and what’s actually orderable today?
Summit 2 from $895 · Skyeline $895 · Skyeline UM $1,095 · Glacier Pro 110V from $1,186 · Summit 3 $1,895 · Glacier Pro 12V and Summit Flex — check the product page; every variant of both showed sold out on the day of writing. The Summit 2 + Smart Power Hub bundle is the one package that discounts the pair.
3. Model by model: buy this one if…
Summit 2 — the default for most vans and RVs
Buy the Summit 2 if you have a standard roof opening, a 12V bank, and a space that 10,000 BTU covers — it’s the lightest, lowest-profile, and least expensive rooftop unit in the range. 10,000 BTU (11,000 on 24V/48V), 58A Turbo / 29A Eco / 21A Sleep, 40 dB in Sleep, ~45 lb, 6.3 in tall, 63–86°F thermostat range, 14 ft 6 AWG cord with the 100A fuse fitted. On our own batteries it runs roughly 7–8 hours of Eco cooling on the 230Ah, 14–16 on the 460Ah, and 19+ on the 630Ah. Rooftop only — it has no wall option. Its low-voltage cutoff is adjustable from the remote (11.0–11.5V is the lithium setting). Since 2026 it ships with a one-piece mounting plate. It’s the one we’d put on most rigs.
Summit 3 — maximum 12V cooling
Buy the Summit 3 if 10,000 BTU won’t hold your space on the hottest days — it’s the most powerful 12V rooftop we make at 13,500 BTU, with dual condenser fans. 33–62A current range, 45 / 55 / 65 dB, ~72 lb, 7.5 in tall, a 20 ft 6 AWG cord, 100A fuse, 9–11.5V low-voltage protection. It fits the same 14.1 × 14.1 in opening class (minimum 14.1 × 13.7 in) but its indoor trim is a wide 28.7 × 22.8 in ceiling footprint. Cooling-only. It’s the pick for large vans, Class C rigs, skoolies, and semi sleepers — the Summit 3 deep dive and the semi-truck guide go deeper.
Summit Flex — the same performance, on a wall
Buy the Summit Flex if the roof is spoken for and a wall or rear door isn’t — it delivers exactly the Summit 2’s 12V numbers from an all-in-one outdoor unit and a slim indoor panel that’s only an air duct with the controls. 10,000 BTU, 58 / 29 / 21A, 40 / 48 / 53 dB, ~45 lb (43 lb outdoor unit + 2 lb panel). Mount it flat on a roof or upright on a wall; it cannot run on its side or at an in-between angle, because compressor lubrication and condensate drainage depend on those two orientations. The wall cutout is a compact 14 × 7 in minimum; the roof orientation uses the Summit 2’s 14.1 × 10.3 in. It’s currently a 12V product; a 24V version is planned but has no confirmed date.
Glacier Pro — the one with a heat pump
Buy the Glacier Pro if you want cooling and heating from a single rooftop unit — it’s the only model with a reverse-cycle heat pump. 12V: 11,500 BTU cooling / 8,500 BTU heating, 62 / 30 / 22A cooling, heating draw variable up to 55A, 43 / 50 / 58 dB, ~68 lb, 7.1 in tall. 110V: 15,000 BTU cooling / 12,000 BTU heating on shore or generator power at just 11A Turbo. The heat pump is efficient but has a hard floor: it stops heating effectively below 36°F, so it’s a shoulder-season heater, not a winter furnace. Roof thickness is capped at 2.9 in on this model (the Summit family accepts 1.5–3.5 in). Availability: every 12V variant showed sold out on the day of writing; the 110V was listed from $1,186.
Skyeline — the quiet, roof-free mini-split
Buy the Skyeline if the roof belongs to solar, you want a stealth profile, or quiet matters most — it’s 12,500 BTU with the compressor outside the cabin and just 35 dB on its lowest setting. The 21 lb indoor head (25.1 × 7.5 × 13.1 in) mounts on an interior wall; the 52 lb outdoor unit (18.2 × 9.1 × 33.5 in, dual condenser fans) mounts vertically on the rear of the van or horizontally on the roof or under the chassis. 18–62A range (about 18–25A once it’s maintaining), 650 m³/h airflow, 100A overcurrent protection, 6 AWG 10.5 ft cord, 10 ft signal cord. It ships pre-charged with 8 ft high- and low-pressure lines; an 18 ft upgrade set is available for longer runs. Two quirks worth knowing: the display is Celsius-only, and there are manual buttons under the indoor cover if the remote goes missing. The Skyeline guide covers install and power in full.
Skyeline UM — new: nothing on the roof, no wall-mounted head
Consider the Skyeline UM if you want the roof untouched and no wall-mounted head — it’s a 12,000 BTU under-chassis outdoor unit paired with a ducted indoor evaporator and a small wall control panel, listed at $1,095 and in stock. As listed on its product page: 65A rated current, 750 W rated power, a 56.2 lb galvanized-steel outdoor unit (27.5 × 18.7 × 6.1 in) and a 13.2 lb indoor unit (15.9 × 12.2 × 5.6 in) with four round outlets, 9.8 ft refrigerant lines, 8.8 ft signal cable, a 6 AWG 8.2 ft cord with the 100A fuse fitted, factory-charged and sealed, and a recommended bank of 230Ah minimum / 460Ah. Ducting and register vents are not included, so budget for a ducted interior. It is a different product from the wall-mount Skyeline (12,500 BTU) — don’t mix up the two. Under-mounting has its own rules about road clearance, debris, water, and exhaust heat; the mounting guide covers them.
4. Runtime: the lineup on our own batteries
Runtime is decided by the battery, not the model — the models mostly differ in how hard they pull in Turbo. Two anchors from our spec data: a Summit 2 12V in Eco runs about 7–8 hours on the 230Ah Standard Edition, 14–16 hours on the 460Ah Smart Power Hub, and 19+ hours on the 630Ah. A Skyeline in Eco (~20A) runs roughly 8–10 hours on a 200Ah-class bank and 16–20 on 400Ah — and about 3 hours flat-out in Turbo on 200Ah. The higher-draw units (Summit 3, Glacier Pro, Skyeline UM) want the 460Ah or 630Ah if you plan to sleep on battery. The all-night runtime post and the amp-draw comparison have the full tables.
5. Honest limits
Two things this chooser can’t do.
- It can’t give you winter heat from a cooling unit. Only the Glacier Pro heats, and only above ~36°F. For real cold, the diesel heater is the answer — for every model, including the Glacier Pro.
- It can’t size your battery for you. Every unit here will run down an undersized bank. Plan the bank from the Turbo draw and the BMS rating, then the hours you want — not the other way round.
Send us your rig, roof opening, bank voltage, and climate and we’ll confirm the fit — that’s what the tech team does all day.
Best for, at a glance
- Most vans and small-to-mid RVs: Summit 2
- Largest 12V cooling: Summit 3
- Cooling + heating in one unit: Glacier Pro (12V) — or Glacier Pro 110V on shore power
- Quietest / roof kept free for solar: Skyeline
- Wall or rear-door mount, same performance as the Summit 2: Summit Flex
- Nothing on the roof, ducted interior: Skyeline UM
- 24V or 48V native bank: Summit 2 (11,000 BTU)
- Best value pairing: Summit 2 + Smart Power Hub bundle
FAQ
Which OutEquipPro AC is best for a van?
For most vans with a standard 14 × 14 in roof opening, the Summit 2 — 10,000 BTU, ~45 lb, 6.3 in tall, 40 dB in Sleep, from $895. If the roof is covered in solar or you want a stealth build, the Skyeline mini-split (12,500 BTU, 35 dB) keeps the roof free; if only a wall or rear door is available, the Summit Flex delivers the Summit 2’s performance upright on a wall (check current availability).
What’s the difference between the Summit 2 and the Summit 3?
Capacity and size. The Summit 2 is 10,000 BTU, ~45 lb, 6.3 in tall, 58A Turbo, 40–53 dB, from $895. The Summit 3 is 13,500 BTU with dual condenser fans, ~72 lb, 7.5 in tall, up to 62A, 45–65 dB, $1,895, and ships with a 20 ft cord. Both are rooftop, cooling-only, 6 AWG with 100A overcurrent protection, and need a 100A-continuous BMS. Pick the Summit 3 when 10,000 BTU won’t hold a large or poorly insulated space.
Which OutEquipPro model has a heat pump?
Only the Glacier Pro: a reverse-cycle heat pump rated 8,500 BTU on the 12V model and 12,000 BTU on the 110V model, effective down to about 36°F outside. Every other model is cooling-only; for freezing conditions, pair any unit with the OutEquipPro 5 kW diesel heater.
Can I mount an OutEquipPro AC on a wall?
Yes — the Summit Flex mounts upright on a wall or rear door (14 × 7 in minimum cutout) as well as flat on a roof, and the Skyeline mini-split’s indoor head mounts on an interior wall with its outdoor unit on the rear door. The Summit 2, Summit 3, and Glacier Pro are rooftop-only. No unit may be mounted sideways or at an intermediate angle.
Which OutEquipPro model is quietest?
The Skyeline — 35 dB on its quietest setting, with the compressor in the outdoor unit rather than overhead. Among rooftop units the Summit 2 and Summit Flex are quietest at 40 dB in Sleep, then the Glacier Pro at 43 dB and the Summit 3 at 45 dB. A low hum at low compressor speed that fades into a soft whine as speed rises is the normal signature of these compressors, not a fault.
Related reading
- Summit 3 Deep Dive: OutEquipPro’s Most Powerful 12V RV Rooftop AC (13,500 BTU)
- Skyeline 12V Mini-Split RV AC: The Complete Guide
- Rooftop vs. Mini-Split vs. Dual-Mount 12V AC: Which Mounting Style Fits Your Van or RV?
- Can You Heat an RV Without Propane? Heat Pump, Diesel, and the Battery Math
- How to Size BTUs for Your RV: 10K vs. 12K vs. 15K Cooling Capacity Explained
- 12V vs. 24V vs. 48V RV Air Conditioner: Which Voltage Is Right for Your Rig?
- Best 12V RV Air Conditioners for Boondocking in 2026
Shop
- Summit 2 — 10,000 BTU rooftop, from $895
- Summit 2 in 24V / 48V — 11,000 BTU
- Summit 3 — 13,500 BTU, $1,895
- Skyeline mini-split — 12,500 BTU, $895
- Skyeline UM under-mount — 12,000 BTU, $1,095
- Glacier Pro 110V — 15,000 BTU with heat pump, from $1,186
- Glacier Pro 12V — check availability
- Summit Flex — check availability
- 5 kW diesel heater, $349
- Smart LiFePO4 battery — 200A/300A BMS, 5-yr warranty, from $585
- Summit 2 + Smart Power Hub bundle
