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Viessmann Vitodens 100-W Boiler

#2 of 4 Viessmann Boilers

Updated: Nov 10, 2016

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Overview of the Vitodens 100-W

The Viessmann Vitodens 100-W is a gas-fired, wall-mounted condensing boiler. The Vitodens 100-W is Energy Star rated with an efficiency of 94.0% AFUE. It has a stainless steel heat exchanger, and a low-emission modulating stainless steel cylinder burner which is factory calibrated to eliminate field adjustments. The unit has built-in automatic frost protection and multiple venting options with vent length of up to 200 feet. Pipe connections are located at the bottom with serviceable components in the front, allowing for easy installation and maintenance. The Vitodens 100-W is suitable for altitudes of up to 10,000 feet.

Consumer Reviews of the Viessmann Vitodens 100-W

  • Very Satisfied
    2
  • Somewhat Satisfied
    0
  • Neutral
    0
  • Somewhat Unsatisfied
    0
  • Very Unsatisfied
    3


Date created: 2016-11-10 Name: Dave Savage
Location: Ontario, Canada

Satisfaction Rating:

1 of 5 stars

Review:
"Garbage"
Do not buy their crap, total waste of money. Demand hot water had to be replaced with electric hot water tank. Furnace had 3 major failures in 4 years. No support from company.


Date created: 2016-02-02 Name: Gerry Marcouix
Location: West Nipissing, Ontario, Canada

Satisfaction Rating:

5 of 5 stars

Review:
"#1"
Yes , we are a dealer for Viessmann residential and also a customer. I use a Vitoden 100 with a combi plus for my own house. The performance of the boiler is very good. As a dealer rating the manufacturer, tech support are very good; they look after the customer's satisfaction. Parts after sales with 24 hour delivery on most parts, as a dealer that looks after customer satisfaction Veissmann back up their dealer with quality service after sales. For comparison I just call Laars for an igniter for a Mascot LX; delivery is 2- 3 weeks, the unit was built in October 2015. Maybe Laars should look at service after sales.


Date created: 2016-01-06 Name: D. Thomson
Location: Mono, Ontario, Canada

Satisfaction Rating:

5 of 5 stars

Review:
"So far, so good"
Into my third winter with this boiler and it has run flawlessly. It is incredibly quiet and is very efficient. I was particularly impressed by its small size. I have been very pleased with it so far.


Date created: 2015-01-05 Name: P. vanSchalk
Location: Canada

Satisfaction Rating:

1 of 5 stars

Review:
"Expensive early life failure"
The combustion fan failed after only a few years' service. The repair cost $1250 Canadian dollars. The blower alone cost $1000.00.


Date created: 2014-11-30 Name: Sue de Nym
Location: Greater Manchester, UK

Satisfaction Rating:

1 of 5 stars

Review:
"Avoid Viessmann"
I had a Viessmann boiler installed 3 years ago. It worked like a dream and we were delighted with the money we saved on our bills until 3 weeks ago, when water started to pour out of the boiler. When the Viessmann engineer came out to it, he identified the faulty hose that had split but refused to fix it under warranty because of the dirty water in the system, saying I needed to get a magnafilter fitted and that my 5 year warranty was now invalid. The boiler had been annually serviced, as per their advice, and nowhere in their literature does it mention the need for a filter. I subsequently found that repairs, when there is dirt in the system, are carried out at the engineer's discretion. I was told twice, by one of Viesmmann's own reps, that if a different engineer had called it would have been repaired and I would have been advised to get the system clean and have a filter installed. After being without hot water or heating for 3 weeks, I had to pay my original installer to come and sort out the problem, which I never thought I would have to do on a boiler installed and serviced by approved and qualified engineers as per the manufacturers instructions. Their so-called customer service agents were disinterested and patronizing, and spoke to me as if I had done something wrong. The product is let down by the shocking after-sales service, which in my case was non-existent. Installing a Viessmann proved to be an expensive and stressful mistake, costing me hundreds of pounds in repairs and hours of telephone calls. My advice would be to avoid them at all costs.


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Other Vitodens 100-W Reviews

The Vitodens 100-W is considered an excellent boiler on online forums. A professional on hvac-talk.com states that Viessmann was the first to make a stainless steel heat exchanger and the Vitodens 100-W has the best heat exchanger of any boiler. A comparison between the Vitodens 100-W and a similar Peerless unit on heatinghelp.com found most people choosing the Vitodens 100-W, with many saying that they don't compare and one member stating that it is like comparing a Volkswagen to a Cadillac.

Vitodens 100-W Warranty

The warranty for the Viessman Vitodens 100-W boiler is comprised of the following:

  • 2-year warranty on the enclosure, combustion chamber, burner, controls and other parts
  • Limited lifetime warranty on the pressure vessel of the boiler. The warranty is prorated after the tenth year

The warranty covers only the original owner at the original site of installation. Labor costs are not included in the warranty.

 
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