HRV cores are Qwen airflow maps, not invented ducts
Qwen Image 3 at 2K/4cr labels the core; Veo invents ducts that are not the unit.
Qwen Image 3 at 2K/4cr labels the core; Veo invents ducts that are not the unit.
An HRV or ERV listing is a heat-exchange core a specifying engineer will check against a cut sheet. Those labels are the product. A cinematic attic with a cousin duct run is a mis-ship. Letter the core. Do not generate the house around it.
The core is the map
Procurement does not need a talking applications engineer. They need a board that survives a pause: supply, exhaust, the core you will ship, the airflow arrows that match the submittal. Put that board on a still. Proof it at 100%. Do not bury it in a video prompt and hope the glyphs hold for six seconds of invented flex duct.
Photograph the cassette if you have it — even light, core large in frame. If you do not, typeset a diagram of this core, not a penthouse mechanical room.
HVAC OEM: the unit still vs contractor /for pages is the nearby split for a condenser cabinet versus a local pad. Useful. Not this listing. An HRV core is indoor air: plates, paths, labels. Copying the outdoor-unit playbook — fake pad, invented house — is the wrong still. Do not morph core depth, port orientation, or the arrow on the cassette. Those are claims.
Qwen letters the core at 2K
Qwen Image 3 Text to Image is the stills row when the letters have to read. Catalog facts: Qwen's third-generation image model, strong prompt adherence, complex text rendering in Chinese and English, intelligent prompt rewriting on by default, 4 credits, 2K max, qualities 1K and 2K. No audio. No duration. Aspects include 1:1, 16:9, 9:16, and 21:9.
Write the exact strings. Rewriting is a help for scene language, not a licence to paraphrase "supply" into a cousin path or invent a CFM the lab did not measure. Set 1K while the words are in draft. Set 2K when the map is the map. There is no 4K chip on this row.
Generate an image from text is the named still job. The agent asks style, aspect, and count, then picks an image model — or the one you name. Priced per model, shown before you confirm. This is not "generate an attic video and screenshot the core." Quote model string, supply, exhaust, core. Proof every arrow. If the generate grew a third port, discard it. A video model is a bad typography engine. Lock the characters here. Then, and only then, consider motion.
Veo invents ducts that are not the unit
Do not ask Veo 3.1 to "show an HRV core with labeled airflow in a finished attic." Veo is native audio, official 4K tier, 4 / 6 / 8 second clips, 40 credits. It will invent motion and invent duct. A 4K invented attic is still the wrong house.
If you even need motion, that is image-to-video from an approved still of this cassette. Prompt only camera. The map already holds the paths. A constructed engineer walking "what you should spec" is a talking head you do not need. Keep lips off the map. Do not put a CFM or a port size in the video prompt. Add a text overlay burns one authored line on a later clip. It does not invent a nameplate.
/for/hvac-companies is the contractor calendar
HVAC companies are the local installer. The page is not an OEM core catalog. The angle is seasonal urgency: pre-summer AC checks, pre-winter furnace tune-ups, posted four to six weeks before peak so the shop is not only answering emergency calls. Two posts a week. 9:16. Facebook and YouTube Shorts.
Film ideas on that page are work in progress, a thermal-camera find, a technician intro. None of that is "label the cassette on white," and none of it is Veo attic wind. A contractor who I2Vs the OEM jpeg as last week's install has used the wrong still. An OEM who copies the contractor playbook — fake technician, invented ducts — has used the wrong still the other way.
Manufacturers is a plant-capability film. An HRV OEM can own a floor plate. Sparks do not typeset supply and exhaust. Seasonal copy can overlay a locked core. It cannot invent the attic. Spec-sheet arrows: Qwen job. Real mechanical room: contractor /for. Invented ducts plus invented CFM: throw the take out.
FAQ
Can I put airflow arrows in a Veo prompt so the attic typesets itself?
No. Veo will invent ducts that are not the unit. Letter the core on Qwen Image 3 at 4 credits, 2K, and proof the characters. Motion, if any, is a later still-to-motion pass of the cassette photo.
Should the image agent invent a typical CFM if I only said "HRV core"?
No. The agent will pick a model and ask style, aspect, and count. It will not know your lab number. Write the strings. A generate that fills a plausible CFM is a cousin SKU.
Is this the same post as HVAC OEM unit-versus-install?
No. That post is the outdoor cabinet versus the local pad. This post is the HRV/ERV core as a lettered airflow map. Nearby. Not the same still. Do not rewrite the contractor calendar onto the cassette.
Do I always need to animate the core?
No. The map is the listing. Animate the approved cassette still only when a short orbit helps a dealer recognise the plates. Identity of the casting is that job. The arrows stay on Qwen, not inside a Veo attic.