COMBOMAX ULTRA 70 24KW 81,888 BTU Electric Boiler 100 Amp, 4-Stage 71 US Gallon
- SKU: COMBOU70-24US
- Brand: Thermo 2000
$7,925.00 Original price was: $7,925.00.$5,501.54Current price is: $5,501.54.
COMBINED ELECTRIC BOILER AND INSTANTANEOUS WATER HEATER
Get the best of both worlds
The ComboMax ULTRA is an electric boiler combined with an instantaneous water heater for residential applications. Available in two sizes, the ComboMax ULTRA offers performance levels from 4.5 kW to 29 kW. This 2-in-1 solution can easily heat large buildings of up to 4750 sq.ft. and provide domestic hot water in less than 7 seconds. Almost maintenance-free, it offers incredible energy efficiency! This unit requires less space, provides quality water, and has a long lifespan. What’s more, the ComboMax ULTRA is covered by a 15-year warranty. Thanks to its T2 UltraSmartTM controller, it offers optimal comfort with accurate temperature management.
refund
On orders over $99
The COMBOMAX ULTRA is an electric boiler used for hydronic heating, and includes a copper heat exchanger submerged in the unit’s tank that is used to instantly produce domestic hot water.
- KW*: 24
- Amps 240V/1PH: 100
- Stages: 4
- Model# COMBOMAX ULTRA 70-24
• An ASME-compliant safety valve set to trigger at 30 psi on the tank side
• An ASME-compliant temperature and pressure safety valve set to 125psi/210°F on the domestic hot water side
• A temperature and pressure indicator
• A ½’’ automatic air valve with shut-off valve for easy replacement
• A thermostatic mixing valve for domestic hot water
• A pressure reducer/regulator adjusted to 12psi
• An ASSE1012 and CSA B64-3 certified check valve for drinking water
• A ¾’’ drain valve to empty the tank
• A domestic hot water exchanger drain valve
• The tank has adjustable legs
WARRANTIES
The AltSource is covered by a 15-year warranty on the tank and the domestic hot water exchanger on residential
applications,10 years on commercial applications and a 2-year warranty on accessories and electrical components.
* = 208V / 1PH WILL GIVE 75% OF NOMINAL CAPACITY
| Weight | 410 lbs |
|---|---|
| Dimensions | 27 × 24 × 69 in |
| Brand | |
| Attachments | Flyer combomaxULTRA, Manual comboUltra, Selection Guide combomaxULTRA, Specifications combomaxULTRA |
| Amps | 100 |
| Stage | 4 |
Download PDF
Download PDF
Download PDF
Download PDF
Related products
- Remove from Wishlist
-
Remove from Wishlist
SKU:220817
Stiebel Eltron Mini 6-2, Point-of-Use, Tankless Electric Water Heater
$159.00Add to cartDescription: Wire Size: 10 Breaker: 25 Amps (240V): 5.7 Amps (208V): 4.3 KW (240V): 23.8 KW (208V): 20.6 Min Flow (GPM): 0.77 Max Flow (GPM): 2 Voltage: 208v, 240v Warranty: 3 Year Warranty on Parts Application: 1 Sink Fuel Type: Electric Height (Inches): 6.5″ Width (Inches): 7-1/2″ Depth (Inches): 3-1/4″ Water Connection: 3/8″ Stiebel Eltron …
Stiebel Eltron Mini 6-2, Point-of-Use, Tankless Electric Water HeaterRead More
-
Remove from Wishlist
SKU:236009
Stiebel Eltron Mini-E 4-2, Point-of-Use, Tankless Electric Water Heater
$233.10Add to cartDescription: Connection Size: 3/8″ Wire Size: 14 Amps (240V): 14.6 Amps (208V): 12.7 Breaker: 15 Min Flow (GPM): 0.3 KW (240V): 3.5 KW (208V): 2.6 Height (Inches): 6.5″ Width (Inches): 7-1/2″ Depth (Inches): 3-1/4″ Voltage: 208v, 240v Stiebel Eltron has been a world leader in advanced water heating technology for almost 90 years. Our engineering …
Stiebel Eltron Mini-E 4-2, Point-of-Use, Tankless Electric Water HeaterRead More
-
Remove from Wishlist
SKU:6117
AO Smith EJC-6, 6 gal ProLine Compact Residential Electric Water Heater
$398.00Add to cartThe ProLine compact residential electric water heaters feature compact design and side-mounted plumbing and electrical connections. They are designed for installation under a counter, in a crawl space or in other tight spaces. Heaters also feature a single heating element and durable tamper-resistance brass drain valve. All ProLine specialty electric water heaters are equipped with a CSA Certified and ASME Rated T&P relief valve, and environmentally-friendly insulation to protect against heat loss.
-
Remove from Wishlist
SKU:222039
Stiebel Eltron Mini 4-2, Point-of-Use, Tankless Electric Water Heater
$159.00Add to cartDescription: Max Flow (GPM): 2 Breaker: 15 Wire Size: 14 Min Flow (GPM): 0.4 KW (208V): 2.6 KW (240V): 3.5 Amps (208V): 12.7 Amps (240V): 14.6 Voltage: 208v, 240v Wattage: 2600 Warranty: 3 Year Warranty on Parts Application: 1 Sink Fuel Type: Electric Height (Inches): 6.5″ Width (Inches): 7-1/2″ Depth (Inches): 3-1/4″ Water Connection: 3/8″ …
Stiebel Eltron Mini 4-2, Point-of-Use, Tankless Electric Water HeaterRead More
-
Remove from Wishlist
SKU:202650
Stiebel Eltron DHC 5-2 Classic, 240 V, 4.8 kW / 208 V, 3.6 kW, Point-of-Use, Tankless Electric Water Heater
$209.45Add to cartDescription: A sleek new, modern housing with the same reliable copper heating system Up to 50% less power consumption compared to storage type heaters Hot water instantly Hydraulically controlled for quiet operation Resettable safety high limit switch Lower installation costs compared to tank type units Exclusive copper-clad heating element Never dry fires and fails prematurely …
-
Remove from Wishlist
SKU:6382
Eemax 4.1 kW Electric Tankless Water Heater
$276.75Add to cartOn demand hot water. Flow switch activates heater only on demand (no standby heat loss) Endless hot water – no storage capacity to run out Easy installation. No T&P relief valve needed (check local codes), only one cold water line need be brought to installation, mounts on wall High temperature limit switch with automatic reset …
-
Remove from Wishlist
SKU:202652
Stiebel Eltron DHC 6-3 Classic, 277 V, 6.0 kW, Point-of-Use, Tankless Electric Water Heater
$209.45Add to cartDescription: A sleek new, modern housing with the same reliable copper heating system Up to 50% less power consumption compared to storage type heaters Hot water instantly Hydraulically controlled for quiet operation Resettable safety high limit switch Lower installation costs compared to tank type units Exclusive copper-clad heating element Never dry fires and fails prematurely …
Stiebel Eltron DHC 6-3 Classic, 277 V, 6.0 kW, Point-of-Use, Tankless Electric Water HeaterRead More
- Remove from Wishlist
-
Remove from Wishlist
SKU:236008
Stiebel Eltron Mini-E 6-2, Point-of-Use, Tankless Electric Water Heater
$233.10Add to cartDescription: Wire Size: 10 Breaker: 25 Amps (240V): 5.7 Amps (208V): 4.3 KW (240V): 23.8 KW (208V): 20.6 Min Flow (GPM): 0.3 Max Flow (GPM): 2 Voltage: 208v, 240v Application: 1 Sink Fuel Type: Electric Height (Inches): 6.5″ Width (Inches): 7-1/2″ Depth (Inches): 3-1/4″ Water Connection: 3/8″ Stiebel Eltron has been a world leader in …
Stiebel Eltron Mini-E 6-2, Point-of-Use, Tankless Electric Water HeaterRead More

Stiebel Eltron ... 







