English specification desk How guides are written

Home / Generators / How to specify a Dual Fuel Generator

Generators

How to specify a Dual Fuel Generator

What to put on an RFQ for Dual Fuel Generator: the ratings, documents, and constraints that change the quote.

25 Oct 2026 · 3 min read · Tradinor Desk

Specification points for Dual Fuel GeneratorTRADINOR · FIGUREWhat to lock for Dual Fuel GeneratorRuntimeTransferLoadElectrical
Put these on the RFQ for Dual Fuel Generator before you compare prices.

A buyer searching for Dual Fuel Generator is usually trying to stop a bad substitute. A generator is specified by the load in kilowatts, the voltage, the duty, and the noise and emissions of the site. The notes below are selection criteria for a Dual Fuel Generator. They are not a catalog promise. Confirm every rating on the current datasheet, drawing, or test report for the revision you will receive.

What has to be true of Dual Fuel Generator

A generator is specified by the load in kilowatts, the voltage, the duty, and the noise and emissions of the site. For a Dual Fuel Generator, start from the duty, then the interface to the rest of the machine or the room, then the document that proves the claim. A lower price that leaves one of those blank is a different product.

Dual Fuel Generator is easy to confuse with Diesel Generator. If the quote could be read as either, add the line that separates them: the rating, the fitment, or the standard named below. Link the drawing number to that line so receiving inspection can reject the wrong one.

Numbers that change the quote

Line What to write for Dual Fuel Generator
Runtime Tank or the fuel supply for the hours you need.
Transfer Manual or automatic transfer, as a separate device if it is.
Load Running kilowatts and the motor-starting peak.
Electrical Voltage, phases, frequency, and whether it is standby or prime.
Fuel Diesel, gas, or another fuel the site can store legally.
Enclosure Open or canopy, and the noise limit.

How to compare two offers

Lay both quotes for Dual Fuel Generator on one sheet and line up runtime, transfer, and load. If a cell is empty, the offer is not finished. Ask for the missing line in writing. When those match, the honest difference is lead time, the test evidence, and who carries the warranty. Do not average a fully specified Dual Fuel Generator with a cheaper line that omitted runtime.

Documents worth having before the deposit

Ask for the rating definition: standby and prime are not the same kilowatts. The file should name Dual Fuel Generator and the revision, not only the supplier’s homepage. A factory quality certificate such as ISO 9001 can sit beside that file. It does not replace it.

Failures that show up after delivery

  • Sizing to the running load and ignoring motor start.
  • Treating standby rating as continuous.
  • Forgetting the noise limit and the fuel storage rule.

On a Dual Fuel Generator, the expensive version of the first mistake is discovering it after the goods are in the crate. Put the rejection condition in the purchase order while the supplier can still restate the offer.

A worked RFQ line

Use this shape, then replace the brackets with your duty: “Dual Fuel Generator — Write kilowatts, standby or prime, voltage, fuel, and noise.” That sentence is a template, not a rating of any brand. If a supplier’s datasheet uses different units, convert them onto this sheet so the next offer can be compared.

Where words like OEM / custom belong

Searches often add a constraint to Dual Fuel Generator: OEM / custom, or outdoor. Keep those on this page. OEM or custom means a drawing, a revision, and a statement of who owns the tool. Without those, you are buying the catalog part. Outdoor means UV, temperature cycle, and corrosion, not only a gasket. Name the climate and the years the gasket is expected to last. If you need a third constraint, add it as another line on the same drawing. A second URL that only swaps the adjective does not give a buyer a second fact.

Related in this section: how to specify Diesel Generator.

Questions buyers actually ask

What should an RFQ for Dual Fuel Generator include?

Write kilowatts, standby or prime, voltage, fuel, and noise.

Is a cheaper Dual Fuel Generator the same part?

Only if runtime, transfer, and the documents match. A missing line is a different offer.

Do waterproof, OEM, or IP words need their own page?

No. For Dual Fuel Generator they are extra lines on this specification. Ask for the test or the drawing that gives the word a value.