What are the electrical requirements?

This is a 240 Volt unit. It takes a double pole 40 amp breaker and #8/2 wire.

Can you install the megaboost with a natural gas tankless?

Sure, you can, not sure why you would, but the megaboost gives 10kw heat to the water and does not restrict flow like a normal tankless water heater. so, in your use case, you could expect that the megaboost would preheat the water going into your natural gas tankless, allowing it to produce more and hotter water. Good Luck.

What power outlet is needed for this installation or should it be exclusively hardwired?

This item needs to be hardwired.

How exactly does this device get you more hot water?

I will either heat up water to put into your tank to help you get more total gallons or if on the outlet side will take the water as it cools down from the tank and heat it up, increasing the total gallons that way. If you have any detailed questions, please feel free to call our Technical Department at 1-800-582-8423 Ext 6 Thank you

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Stiebel Eltron MegaBoost Tank Booster Water Heater | Increases Existing Tank Capacityup To 70%

Stiebel Eltron MegaBoost Tank Booster Water Heater | Increases Existing Tank Capacityup To 70%

Product ID: 95599139

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Details

Brand
Stiebel Eltron
Capacity
30 Gallons
Power Source
Wind Powered
Special Feature
100% Efficient
Color
red white

⚡200% faster recovery time

📏Compact wall-mounted design saves space

🔥Boosts hot water capacity up to 70%

Description

🔥 Upgrade your hot water game—more showers, less wait! ⚡

COST EFFICIENT UPGRADE - Avoid costly large tank replacements and reduce standby energy losses—save money while boosting performance.
LIGHTNING FAST RECOVERY - Experience 200% faster tank recharge, so hot water is ready when you need it—no more waiting around.
SPACE SMART INSTALLATION - Wall-mounted and compact, it upgrades your system without demanding extra room—perfect for modern living spaces.
PRECISION TEMPERATURE CONTROL - Fast and accurate hot water temperature adjustment ensures ultimate comfort and convenience every time.
MAXIMIZE YOUR HOT WATER OUTPUT - Transforms any tank to deliver up to 70% more hot water—never compromise on your shower time again.

The Stiebel Eltron MegaBoost Tank Booster is a high-efficiency accessory that increases your existing water heater’s capacity by up to 70%, with a 200% faster recovery time. Designed for flexible indoor wall-mount installation on any gas or electric tank, it saves space and energy by enhancing smaller tanks to perform like larger ones. With precise temperature control and a 7-year leakage warranty, MegaBoost delivers longer, hotter showers without the cost or footprint of a bigger tank.

Specifications

Brand	Stiebel Eltron
Special Feature	100% Efficient Boosting Effect, 200% Faster Recovery Time
Color	red,white
Efficiency	100%
Style	Indoor Installation
Mounting Type	Wall
Is Electric	No
Manufacturer	Stiebel Eltron
UPC	040232520648
Global Trade Identification Number	00040232520648
Part Number	MegaBoost
Item Weight	6.96 pounds
Product Dimensions	7.88 x 4.13 x 14.19 inches
Item model number	MegaBoost
Thickness	11 Inches
Item Package Quantity	1
Special Features	100% Efficient Boosting Effect, 200% Faster Recovery Time
Batteries Included?	No
Batteries Required?	No
Warranty Description	7 years against leakage / 3 years against defects in workmanship & materials.

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€ 448.18

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