TECHNOTHERM electric storage heater 14 Duo 8+

Series Electric storage heater TTB-E 14 Duo 8+

Room storage heater with static heat output and efficient heat distribution.
The TTB-E Duo combines active air outlet (top and bottom) with static radiant heat via the housing surface—for even, comfortable room temperatures.
Thanks to the integrated storage element, the unit offers a long bridging time even after switch-off—ideal for rooms used temporarily without continuous heating. Controllable via the app.
Infinitely variable temperature control, overheat protection, and plug-and-play installation (230 V) make the TTB-E Duo a flexible supplementary or interim heater—maintenance-free, compact, and safe.
Technology and housing made in Germany—for reliable warmth without complex installation.

High-quality technology – developed and manufactured in-house by TECHNOTHERM in Germany.
Safe and EU-compliant: Our systems meet all European safety and environmental requirements.

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Long-lasting feel-good warmth

The fireclay storage core absorbs a lot of heat and releases it evenly over many hours. This keeps the room pleasantly warm, even when electricity rates are high.

Low heating costs thanks to favorable tariffs and PV

The room storage heater charges in defined time windows at low electricity prices and automatically adjusts the charging time to the heat demand. Ideal in combination with dynamic tariffs and your own photovoltaic system.

Comfort through smart control

The electronic, internet-enabled thermostat with weekly programs and app connectivity regulates heating output precisely. Features such as adaptive control, charge indicator, and open-window detection increase comfort and save energy.

Efficient Heat Storage

The solid fireclay storage core ensures excellent heat storage and even, long-lasting heat output.

Silent operation

Static heat output enables exceptionally quiet operation—ideal for living, sleeping, and work areas.

Electronic thermostat with programs

The integrated thermostat offers daily and weekly programs for precise, automated temperature control.

Internet control via app

Convenient operation, remote access, and programming via smartphone app—full control from anywhere.

Flexible charging times

Selectable charging windows (7–8 h / 14–16 h) for optimal use of electricity tariffs or PV surplus energy.

Compact housing

The space-saving design with only 18.5 cm installation depth allows flexible positioning, even in tight spaces.

Prepared for wall mounting

Easy and safe installation thanks to preconfigured mounting interfaces for wall installation.

Intelligent comfort features

Adaptive control, charge indicator, booster heater, and open-window detection increase energy efficiency and ease of use.

Technical Data

ModelPerformanceDimensions (W x H x D)weight [approx.]Order numberInquire
TECHNOTHERM electric storage heater 14 Duo 8+0.85 kW465 x 715 x 185 mm48 kg842508014Inquire now
TECHNOTHERM electric storage heater 14 Duo 17+1.70 kW675 x 715 x 185 mm86 kg842517014Inquire now
TECHNOTHERM electric storage heater 14 Duo 26+2.55 kW885 x 715 x 185 mm124 kg842526014Inquire now
TECHNOTHERM electric storage heater 14 Duo 34+3.40 kW1095 x 715 x 185 mm162 kg842534014Inquire now

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Gebrauchs- und Montageanleitung

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Inquire about Product

    ModellLeistungAbmessung B x H x TGewicht [ca.]Bestellnummer
    TECHNOTHERM electric storage heater 14 Duo 8+0.85 kW465 x 715 x 185 mm48 kg842508014
    TECHNOTHERM electric storage heater 14 Duo 17+1.70 kW675 x 715 x 185 mm86 kg842517014
    TECHNOTHERM electric storage heater 14 Duo 26+2.55 kW885 x 715 x 185 mm124 kg842526014
    TECHNOTHERM electric storage heater 14 Duo 34+3.40 kW1095 x 715 x 185 mm162 kg842534014
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    Visit us

    Branch locator

    Find your nearest branch

    Write us

    Contact form

    We look forward to your message

    Call us

    +49 (0) 3724 66869 0

    Mon. – Fri.: 08:00 a.m. – 20:00 p.m.
    Sat.: 08:00 a.m. – 17:00 p.m.

    Federal holidays and Sundays excluded

    Get advice

    Arrange an appointment

    Arrange a personal appointment

    Filialsuche

    Finden Sie die nächstgelgende Filiale

    Kontaktfomular

    Wir freuen uns auf Ihre Nachricht

    Dies ist die Überschrift

    Mo. - Fr.: 08:00 - 20:00 Uhr
    Sa.: 08:00 - 17:00 Uhr

    bundeseinheitliche Feiertage und Sonntag ausgeschlossen

    Terminvereinbarung

    Persönlichen Termin vereinbaren