Boiler Control Upgrades? There may be Cash Incentives available.
Published on: November 26, 2019
Cash incentives for boiler efficiency upgrades.

What kind of Boiler array do we have here….

The existing plant was an array of eight cast iron boilers installed in 1983, about 33 years ago. Cast iron boilers can last 50 years or more if maintained. However traditional boilers were designed in a bygone era where natural gas was plentiful. During those days it seems like climate change may have been just a passing concept.

Boiler Technology

Natural Draft cast iron boilers typically have a 70% annual fuel utilization efficiency (AFUE) out of the box. However a 33 year old boiler can experience efficiency losses down to 50%. Consequently antiquated cast iron boilers may require twice the amount of natural gas for every unit of heating energy.

Condensing boilers when new have an AFUE of around 97%! The AFUE would deteriorate over time like a cast iron boiler. However this type of boiler already starts out 20 percentage points ahead!

The Economics can be Prohibitive without outside funding

The cost of this boiler upgrade came with a size-able price tag, approximately $330,000. What is amazing here is that the array of boilers was smaller in size to a mini-van. Without a cash incentive, this project would have a simple payback of 4.23 years. However building owners are hesitant to invest this much capital into a depreciating asset. Heating and related costs are generally passed through to Tenants. Landlords have less appetite to invest their capital into energy efficiency projects if the Tenants are funding the operating costs.

However taking that $330,000 price tag and reducing it down to $99,000 paints a different picture. Now the simple payback is only 1.27 years. Given commercial buildings are always “for sale”, Owners prefer to invest capital if the simple payback is around 1 year. The Owner now has a building with a higher Net Operating Income (NOI). Buildings with higher NOI’s have a higher valuation and can be sold for more margin.

Do you want to learn more? Feel free to schedule a free one-on-one appointment and speak with one of our engineers.

How does a Natural Draft Boiler work

Amazingly, natural draft boilers have been around for thousands of years. However, they were not widely used for space heating until the industrial revolution.

Natural draft boilers in our project utilize natural gas for fuel. Because natural draft boilers rely on the hot combustion air to draft naturally, a common trait of natural draft boilers are that the burners are near the bottom of the system.

Natural draft boilers must “lift” the air from the bottom of the boiler up through the heat exchanger and through the flue. As a result, this heavy lifting takes energy away from the heating process and lowers the efficiency of the boiler.

Natural Draft Boilers
New Natural Draft Boilers

How does a Condensing Boiler Work?

In contrast, condensing boilers, are extremely energy efficient because they are able to provide ample heat while operating at lower temperatures.

Operating at lower temperatures results in condensation forming within the venting system of natural draft boilers. Furthermore, condensation can be harmful to the heat exchangers of traditional boilers. To sum up, lower operating temperatures result in less energy consumption, less lift, and keep more heat in the heating system. As a result, good condensing boilers can attain energy efficiency of 90% or more.

How do you sign up?

Our Company, LC Associates, has been helping Clients reduce their energy costs, carbon footprint and energy consumption for almost 20 years. Above all, our Team consists of passionate engineers that are able to connect with our Customers and solve their problems in the most cost-effective and efficient manner. You can read about what we do by clicking this link. We are trusted advisers to some of the most Iconic Institutions of New York City, certainly we must be doing something right. Feel free to give us a call at 212.579.4236 to schedule a call or meeting with one of our engineers. Alternatively use the booking widget on this web page to schedule a call at a time convenient for you.

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