icon
MBTEK MBTEK MBTEK
0
Back to Heat Pumps - Air to WaterAPOLLO Heat Pump - 60k btu / 5 ton - Air to Water - EVI Inverter DC technology
APOLLO Heat Pump - 42k btu / 3.5 ton - Air to Water - EVI Inverter DC technology

APOLLO Heat Pump - 42k btu / 3.5 ton - Air to Water - EVI Inverter DC technology

📦 Product ETA: Mid November

$4,046.90

People watching this item right now

Out of stock

 Simply the best air to water heat pump on the market.
 Designed in the USA.
  • APOLLO heat your house efficiently up to -31°F / -35°C
  • All-in-One solution for heating, cooling, DHW, and pool
  • WiFi controller
  • Use with radiant floor, fan coil unit FCU, central air handler AHU

Bring your PEX and the job is done !

  • Heat: 2500 ft²
  • Capacity: 3.5 Ton, 42K BTU, 13KW
  • CSA/UL Certified for US and Canada
  • Inverter DC Panasonic Compressor
  • Inverter DC Fan Motor
  • Green Refrigerant R-410a
  • Quiet operation

Warranty: 5 years

Features

Specs

Reviews / Q&A

Manual
apollo_video_img_bg

APOLLO Air-to-Water Central Heat Pumps

EVI DC Inverter Technology

The Apollo series is equipped with advanced technology that can operate in temperatures as low as -31°F.
Purchase Now

Apollo Air-to-Water
Main Features

  • Functions under -31°F

    Smart EVI inverter structure allows stable operation under -31°F

  • Energy Saving

    COP reaching as high as 5.65 for a SCOP, with an annual COP of 4.88

  • Certified Technology

    Over 65k units sold worldwide. UL certified.

  • EVI Full Inverter

    Inverter compressor with an inverter controller and DC fan motor

  • Virtually Silent

    You won't hear it running from 10 feet away

  • Famous Brand Components

    Created with Panasonic compressor and Siemens fan motor technologies.

APOLLO-Air_to_Air-main-features
ait-to-water-1_ac3dd332-b534-4c5d-a247-73d2d2e48a27

Operates well in most temperatures

Extreme Cold and Heat

Wide ambient temperature range from -31°F to 110°F. Features include intelligent control, automatic load adjustment in different climates and environments to satisfy the demands of summer cooling, winter heating, and hot water production throughout the year.

EVI / Full Inverter Technology

Highly Efficient and Noise-Free

The step-less inverter compressor, step-less inverter control system, brush-less fan motor, and DC speed water pump are all components of the APOLLO EVI + DC Inverter heat pump. It not only saves energy but is as quiet as a refrigerator, producing 12dB (A) less noise than a standard On / Off heat pump.
air-to-water-small-1_1ce746bd-e31d-414a-9f8a-61216dbca7a5

UL Certified

A+++ Energy Labeled

This unit is currently one of the most energy efficient, with the potential to dramatically lower customers' energy costs. Its highest COP is 5.65, with a SCOP is 4.88. Our high-efficiency DC variable frequency heat pump uses over 30% less energy than other air source heat pumps.
air-to-water-small-2

Heating / Cooling Time

50% Faster than Regular Heat Pumps

Once the heat pump is turned on, the inverter unit quickly selects the best compressor/fan motor operating frequencies. The heat pump EEV will open automatically based on heating or cooling demands. The inverters' fast heating saves up to 50% more heating time compared to traditional heat pumps.
AP-HPS4KW

A must have addon
All-in-one PUMP STATION

Because the heat pump itself is only one component of the hydronic installation, the entire system may rapidly become intricate and costly. The APOLLO Pump Station simplifies the entire process: Connect your heat pump + heat exchangers (Fan coil, Radiant floor, Radiator, Baseboard, and Pool application) to the Pump Station and you're ready to go.

Included in the Pump Station:
  • Domestic Hot Water and Pool operation
  • Wi-Fi color touchscreen controller
  • High Efficiency Circulator
  • Electric Backup Heater 14KBTU (4KW)
  • Large Expansion tank
  • Two 3-Way motorized valve
  • Flow Bypass Valve to keep optimum flow
  • Purge and Fill Valve assembly for easy service
  • Air Vent
  • Relief Valve
  • Pressure Gauge
  • Quick connect wiring box with sensors

Specifications

  • Swipe right to browse the table

GENERAL INFORMATION

HEAT PUMPUNIT3.5 TON5 TON6 TON
Power supplyV/Ph/Hz220/1/60220/1/60220/1/60
Water Inlet / OutletInch1"1"1"
Water Flow/ VolumeFt³ / h497691
NoiseDB(A)505558
Unit Dimension (W/D/H)Inch41/18/23.545.5/20/53.545.5/20/53.5
WeightLbs270350370

TECHNOLOGY

COMPONENT3.5 TON / 5 TON / 6 TON
ControllerFull Inverter Control
CompressorPanasonic DC inverter compressor
Fan motorSiemens DC fan motor
Refrigerant flow controlEmerson Electric Expansion Vavle
Heat exchangerHigh efficiency tube in shell 
RefrigerantR32/R410a

Heating condition:
Air DB 68°F / WB 59°F
Water inlet: 59°F, Water outlet: 131°F

HEAT PUMPUNIT3.5 TON5 TON6 TON
OUTPUT (heat)Kbtu426072
INPUT (heat)Kbtu9.21315.7
INPUT CURRENTAmp12.217.420.8
COPW/W4.64.64.6

Heating condition:
Air DB 44°F / WB 42°F
Water inlet: 104°F, Water outlet: 113°F

HEAT PUMPUNIT3.5 TON5 TON6 TON
OUTPUT (heat)Kbtu35.847.756.3
INPUT (heat)Kbtu1114.217
INPUT CURRENTAmp14.81922.7
COPW/W3.233.353.3

Heating condition:
Air DB 10°F / WB 7°F
Water inlet: 97°F, Water outlet: 106°F

HEAT PUMPUNIT3.5 TON5 TON6 TON
OUTPUT (heat)Kbtu22.232.439.2
INPUT (heat)Kbtu10.515.218.6
INPUT CURRENTAmp1420.324.8
COPW/W2.112.132.11

Cooling condition:
Air DB 95°F / - - -
Water inlet: 54°F, Water outlet: 44°F

HEAT PUMPUNIT3.5 TON5 TON6 TON
OUTPUT (cool)Kbtu27.342.751.2
INPUT (cool)Kbtu10.21720.4
INPUT CURRENTAmp13.622.627.2
INPUT MAX CURRENTAMP20.53440.7

Customer Reviews

Based on 6 reviews
100%
(6)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
S
Simon (Ojai, US)
Good unit, long wait, performs excellently

Looks like good unit, Long wait!
Waited several months for delivery of 3.5T unit due to shipping issues and COVID lockdowns.
Allen and others at MBTek were patient and as helpful as they could be with something outside their control.
3/4 of my energy bill is for heating between Oct and April. Hoping for a slight overall reduction - it'll depend on future gas prices.

Unit arrived mid April when my radiant floor system goes dormant until Oct. Lots of time for installation!

Update:
Now it's installed and running.
Pipe installation was very simple, only complicated by the positioning of the buffer tank. Turned it on and it ran with just the defaults set. It's silent - only audible within 3'. Heats the buffer tank (50gl) to temp in under 30mins (previous gas heater took ~40mins).
The instructions for the wiring took a little educated guesswork, but everything worked first time and it responds correctly to the house thermostats and the water temp settings.

Now we're attempting to add a DHW indirect tank as the old gas unit has just sprung a leak. Expecting great things.

User picture User picture
M
Matt Lawrie (Seattle, US)
Just got it. Uninstalled.

Unit looks well built and was well packed for shipping. I’ll update my review when I’ve installed.

S
Simon (Ojai, US)
Looks like good unit, Long wait!

Waited several months for delivery of 3.5T unit due to shipping issues and COVID lockdowns.
Allen and others at MBTek were patient and as helpful as they could be with something outside their control.
3/4 of my energy bill is for heating between Oct and April. Hoping for a slight overall reduction - it'll depend on future gas prices.

Unit arrived mid April when my radiant floor system goes dormant until Oct. Lots of time for installation!

Will update later when it's actually working.
Getting Inflation Reduction Act grants is extremely difficult - there is no local contractor prepared to take on this install so it's a DIY!

E
Everett N.
Great Solution

The Heat Pump has been a game-changer for me. It's taken the stress out of heating my home, and I don't have to worry about exorbitant energy bills anymore. It's definitely a must-have for anyone looking for a more cost-effective heating solution.

P
Phil V (Whitney Point, US)
Low Temps = no problem

Got the 4 ton unit when it was available and so far so good overall. Few "gotchas" that I've worked through with the MBTek Guys and reaching out to other users. The monobloc design made this a overall simple install! Went through a few days already this winter when it was 0F outside, the electric heating element for backup was minimally used to help boost the water temp while the heat pump was going through defrost cycles.

Load More

Speak with an MBTEK Heat Pump Owner in your Region

Use our interactive map to contact a Mbtek Apollo heat pump owner in your area and ask about their unit.

Frequently Asked Questions

General

Payment and Shipping

Warranty

Where can I find a dealer?

You can speak directly with one of our sales agents via phone, chat, email or text message for more information.

Who will install my heat pump?

Mbtek does not complete the installation. Any HVAC professional will be able to install your purchase. If you require assistance finding one, we are here to help.

Where can I find parts?

At this link. We have spare parts ready to ship the following business day.

When will I receive my unit?

As soon as the unit is in stock, we will book the shipment following business day. The availability (or ETA) of a specific unit is mentioned on the top of each product page. Depending on your location, delivery can take anywhere from 3 to 12 days

Do I have to pay customs fees if my unit is coming from another country?

No. We take responsibility for these charges.

Are your products shipped in the U.S. or Canada?

It varies for each product. However, we have warehouses in Pennsylvania (U.S.), Alberta (CAN), and Quebec (CAN).

What is the product warranty?

The compressor includes a 5-year warranty.

Download

Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday
January,February,March,April,May,June,July,August,September,October,November,December
Not enough items available. Only [max] left.
Shopping cart

Your cart is empty.

Return To Shop

Enable cookies to use the shopping cart
Subtotal:
$0.00
View cart
Estimate Shipping

Estimate Shipping

Sign up our newsletter

Subscribe to our newsletters and don’t miss new arrivals, the latest product updates and our promotions.

Choose the ID of the Quiz you want to render (automatic popup):

  • Vermont rebate with ID: rkHjz3
  • Easy System Builder tool with ID: RbHRWv