Identify the existing unit
Use the manufacturer and model shown on the equipment information, if accessible without disturbing it. State the intended use and the practical question: replacing a unit, comparing a specification or understanding an available option.
Treat compatibility as a question
Dimensions, energy supply and installation requirements can differ between models. Similar appearance does not establish interchangeability. A qualified professional should assess the actual setup and manufacturer requirements before physical changes are made.
Separate the next steps
A product quotation, installation assessment and removal of old equipment are different tasks. Clarify who is responsible for each part and which arrangements are included before making a commitment.