Skip to content
Manage your account
Track orders, manage your details, and sign in without a password.
- No password required
- We send a secure 6-digit code to your email
- New email? Signing in creates your account automatically
Final Week — Winter Is Coming — 20% OFF Sitewide Free Shipping 00d : 00h : 00m : 00s
APOLLO DHW250 MAX - Stainless Combined Indirect Water Heater Tank (Copy)
Choose your tank size
4 models available
20% OFF
$4,663
$3,730
Shipping
$793
Free
Secure checkout · Free shipping
Need help choosing?
- 10-Year WarrantyEvery Apollo DHW MAX tank ships with a 10-year manufacturer warranty.
- Stainless Steel 316Inner tank and coil built from SS316 for maximum corrosion resistance and longevity.
- All-in-One DesignCombined DHW and buffer in a single footprint — fewer connections, less space, simpler install.
- High-Efficiency Insulation2" side and 3" top polyurethane foam cuts standby heat loss and prevents condensation.
- 20% More Hot WaterAPOLLO patent cold water inlet design recovers up to 20% more usable hot water from every cycle.
Apollo DHW MAX Series
Built for heat pump DHW performance
-
Stainless 316 inner tank & coil
Resists corrosion from DHW minerals and closed-loop fluids for a service life measured in decades.
-
Combined DHW + buffer volume
Single tank eliminates a separate buffer vessel — less piping, fewer leak points, smaller footprint.
-
2"–3" polyurethane foam insulation
Thick foam jacket minimizes standby heat loss and keeps condensation off the tank surface.
-
Optimized for heat pump cycling
Buffer volume absorbs thermal mass during defrost cycles, protecting efficiency and reducing short-cycling.
-
APOLLO patent cold water inlet
Proprietary inlet stratification increases usable hot water delivery by up to 20%.
-
200 psi rated, relief valve included
Rated for 200 psi, 120 psi relief valve and drain valve included — no extra hardware needed.
Residential & commercial ready
Sized and rated for both residential and light commercial heat pump DHW applications.
Flexible connection layout
Dedicated ports for DHW, Hydro Smart, coil, and buffer circuits — no field adapters for standard installs.
Defrost-cycle protection
Buffer volume absorbs and releases energy during heat pump defrost for stable DHW output in cold weather.
10-Year warranty
Backed by a 10-year manufacturer warranty and full MBTEK after-sale technical support.
Technical specifications
Select a product-specific specs mapping block for this product.
Product documents
No product documents or manuals are currently published here. Contact us if you need technical documentation.
Product details
STAINLESS COMBINED INDIRECT WATER HEATER TANK WITH BUFFER – SPACE-SAVING ALL-IN-ONE DESIGN
The APOLLO DHW250 MAX is a combined domestic hot water (DHW) and buffer tank, designed for the APOLLO heat pump systems. Built in stainless steel 316, it delivers high durability, excellent insulation, and optimized system performance for residential or commercial installations.
Key Benefits
- All-in-one DHW + buffer tank to save space and simplify installation
-
Buffer (90Gal) for improved heat pump performance and defrost cycles
- High insulation (2"–3") to reduce heat loss and prevent condensation
- Stainless steel 316 construction for long-lasting corrosion resistance
-
Domestic cold water inlet APOLLO patent design for 20% more hot water
Specifications
- DHW Volume: 160 Gal.
-
Buffer Volume: 90 Gal.
- Material: Stainless Steel 316 (inner tank)
- Connections: DHW Inlet/Outlet: 3/4", Hydro Smart Inlet/Outlet: 1", Buffer connections: 1 1/4"
- Insulation: 2" sides / 3" top polyurethane foam
- Pressure Rating: 200 psi
- Relief Valve: 120 psi
- Drain Valve: Included
- Warranty: 10 years
- Application: Residential & commercial heat pump systems
