Vaillant ecoTEC Plus 840 Combi Boiler 40kW

Vaillant ecoTEC Plus 840 Combi Boiler 40kW

Marsoni

M251S

$986.76

Get it in 3 business days with 1 day shipping. Friday, May 29

Vaillant ecoTEC Plus 840 Combi Boiler 40kWThe new Smart Home Ready ecoTEC plus integrates seamlessly into a smart home enabling complete control of your heating via Amazon Alexa and Apple HomeKit and the myVAILLANT app. Whats more it unlocks a whole new level of remote appliance care support and energy optimisation for your customers for increased efficiency first class customer service and even more peace of mind. The new ecoTEC plus is tested to work safely and efficiently with up to 20%

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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About 6 months in, and I am very happy with the performance of this printer. I loved that it collated multipage documents without being told to! I have denied every request for firmware updates, and I am pleased to report that remanufactured ink cartridges (pronounced "more affordable and just as good") work just fine. DO NOT UPDATE THE FIRMWARE. The updates only serve to make it impossible to use off-brand or remanufactured ink cartridges.

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Reviewed in the United States on April 21, 2026

Verified Purchase

Sharon H

Charlottesville, US

★★★★★ 5

Sublimation ink

Love this ink! Bright colors. Haven't had to refill my ink yet. No clogging problems. Ink quality is great!! Very easy to install.

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Reviewed in the United States on April 16, 2026

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Hilen Cabello

Waukegan, US

★★★★★ 5

Very very good

Very good sublimation inks, the images come out with good colors

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Reviewed in the United States on April 21, 2026

Verified Purchase

Christine

Houston, US

★★★★★ 5

Vibrant, Rich Colors

This is my absolute FAVORITE sublimation ink. For the price, it's the best you'll find the canisters are easy to use, don't leak, and lasting for months. The bottles fit perfectly onto the eco tank. The colors are vibrant, rich, transferring to piece exactly as it should. These work like a dream and I'm a loyal customer, for sure.

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Reviewed in the United States on December 15, 2025

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david medina jr

Port Orchard, US

★★★★★ 5

Very vibrant.

Great quality!!!

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Reviewed in the United States on May 7, 2026