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Username
Rocco Annis
Proposer First Name
Rocco
Proposer Email
rannis@tunstall-inc.com
Proposer Last Name
Annis
Proposer Company/Organization
Tunstall Corporation
Proposer Phone
(413) 507-1220
Proposer Job Title
Chief Product and Technology Officer

Boston 2023 Areas of Focus

Proposed Session Description
This conference session is aimed at engineers and designers looking for ways to electrify buildings that will be robust against future technological shifts and trends in the HVAC industry. This presentation will explore the existing and potential upcoming landscape of heat pump and heating and cooling technologies as well as strategies to incorporate waste heat and thermal storage.
Learning Objectives
Understand the current trajectory of refrigerant and heat pump technology and the associated legislation environment.
Understand the factors involved in human thermal comfort and how they are addressed by the HVAC system.
Understand how currently available hydronics technologies fit in the effort to decarbonize and electrify HVAC in the existing built environment.
Understand how hydronics enables the use of small-scale and large-scale thermal energy networks.
Has this session been presented before?
No
Session Format
Presentation followed by facilitated discussion or breakout groups

Strongest Content Connection - Boston 2023

Reviewer 1
Rosenbaum, Marc
Reviewer 2
Boettcher, Dave
Proposal #
118
Committee Decision
Being Considered

Presenters

Full Description
Big questions: 1. How can we insure installer education and availability? We can maximize our qualified installer base by using techniques and technologies that have proven themselves over decades. We do not need to make significant changes in the HVAC industry to help realize an all-electric future. Hydronic piping is a well-established and widely deployed method for transporting heat throughout buildings. There are many installers, maintenance personnel, and distribution chains in every market in the US and Europe. The current workforce is already using and maintaining 90% of the equipment that would be used on a hydronic electrification project. The technology necessary for full electrification is not a significant change in the technology that is currently used. 2. How fast can we get our existing buildings electrified? According to NREL, 20% of commercial buildings in the US are heated by a hot water boiler. This means that these buildings, which make up 12 billion square feet of building floor area, already have distribution systems in place for electrification. Only the boiler would need to be replaced with an electrified air-to-water heat pump solution. There are many other buildings that also have boilers or some type of chilled water distribution that can be altered for an immediate transition to an air-to-water electrification solution. Converting existing buildings to hydronic distribution also allows for the addition of cooling to each unit and provides greater flexibility in routing piping than other technologies such as air ducting or refrigerant piping. 3. What will the future all-electric heating and cooling system look like? The goal for future heating and cooling systems will be to generate as little heat as possible while capturing as much of that heat and other sources of heat as possible. To achieve maximum energy utilization, the building must be able to connect to and incorporate many varied heat sources and storage options. This will lead to both large- and small-scale thermal distribution networks and novel ways of storing and capturing heat produced by other processes. 4. How can we prepare now for that future system? To prepare for the system of the future, we must use a versatile distribution system that can incorporate heat from many sources at many different temperatures. Hydronic systems offer that ability and in addition to comfort for the occupant, it provides versatility to the designer and reliability to the owner. Why is this presentation important now? As an industry, we need to act quickly to get building carbon emissions reduced. Both legislation and client demand are driving this change now. Rather than continuing to exhaustively evaluate new technologies to find the silver bullet that will be a one-size-fits-all for everyone, we need to realize that we already have a solution to building decarbonization and energy reduction that just requires utilizing a mix of existing, time-tested technology with an Air-to-Water heat pump. We need to act now and stop letting perfect be the enemy of good.