How long does it usually take to install a prepackaged DHW kit?

Well, that all depends but usually 2 workers can install a simple DHW kit and have it fully commissioned within 3 days. There are some cases where only 2 days is required and some days more. Our Heliomaxx kits are designed for simplicity and we expect that you shouldn’t really need more than 48 total hours for a job and could be as low as 32.