Call (561) 779-3213 or send the form below: tell me what you are developing.
If you are an engineer or a manufacturer choosing an adviser for an air-to-water heat pump or ventilation product, this is an air-to-water heat pump product development consultant who has done the job from the inside: specifying, developing and sourcing, not only reviewing. The work is advisory. It supports your team's decisions and does not replace your own design, testing or certification.
Air-to-water is an air-source machine: it takes heat from outdoor air and delivers it to a water circuit for space heating or hot water.
Randolph Scott Bell holds a B.Sc. in Engineering from Aalborg University in Denmark and is fluent in English, Danish and German. His Danish energy career covered heat-pump and ventilation product development. In Denmark he developed a class-leading air-to-water heat pump, which the manufacturer rated best-in-class for COP.
He also sourced and sold mechanical ventilation products from across Europe, South Africa and the Middle East, so the advice covers international procurement as well as design.
Today he is a RESNET Certified HERS Rater (RTIN 4516301), a LEED Accredited Professional and a Florida Certified General Contractor (CGC1528750): a certified energy engineer who also understands how a product behaves once it is installed in a building.
With a conversation about what you are developing, where it stands and what decision you face. Scope depends on the product and the stage, so no price is listed here. Call (561) 779-3213 or use the form at the top of the page.
Tell me what you are developing and the decision in front of you.
This website received CSS Design Awards Special Kudos 2026 and Web Design Awards Winner 2026.
An adviser works alongside your engineering or product team on the decisions that set a heat pump product's fate: what the specification should say, how it compares with what competitors sell, which suppliers can deliver the components, and how the product is sourced and brought to market. The work is advisory. It supports your team's decisions; it does not replace your own design, testing or certification.
No. An air-to-water heat pump is an air-source machine: it draws heat from outdoor air and delivers it to a water circuit. Ground-source and water-sink systems are different machines with different engineering. Geothermal heat sinks are a separate offer with their own page, linked from this one.
Randolph Scott Bell holds a B.Sc. in Engineering from Aalborg University in Denmark and is fluent in English, Danish and German. His Danish energy career included heat-pump and ventilation product development, and he developed an air-to-water heat pump in Denmark that the manufacturer rated best-in-class for COP. He is now a RESNET Certified HERS Rater (RTIN 4516301), a LEED Accredited Professional and a Florida Certified General Contractor.
No. This page offers advisory and product-development consulting only. Nothing here is a product for sale, and the work is not a substitute for your own testing, certification or legal and regulatory review.
Yes. Randolph sourced and sold mechanical ventilation products from across Europe, South Africa and the Middle East, so the advice covers supplier selection and international procurement as well as design: how to compare suppliers, what to ask for before committing and where the risk usually sits.
Engineers and manufacturers who must choose an adviser for an air-to-water heat pump or ventilation product, whether a new line or the revision of an existing one. It also suits importers and distributors weighing which products to bring to a market.
Setting your product's specification against the products it will be compared with, using the figures published by the manufacturers and the test standards your market applies, then identifying where the design can lead and where it only needs to keep pace. The aim is a specification you can defend to a buyer or an engineer.
No. The local work on this site is separate. This is a niche engineering advisory offer for product teams anywhere. If you are in Palm Beach County and need a home energy rating, see the HERS rating page linked below.
It starts with a conversation about what you are developing, where it stands and what decision you face. Scope depends entirely on the product and the stage, so no price is published here. Call (561) 779-3213 or send the short form above.
Yes, each as its own offer. HERS ratings, CHP cogeneration feasibility and owner's representative services have their own pages, linked below. The heat pump offer here is a product-development engagement and is kept separate from them.