Solar system sizing
What kind of backup system should I use with my solar installation?
What kind of backup system for my solar installation? This is a common question. DualSun has no particular recommendation for the choice of backup sys...
How do I determine the required tank volume?
There are two cases to consider when dimensioning the volume of a hot water tank: For tanks with an integrated backup heating system the tank volume s...
How many Dualsun SPRING4 panels are needed to heat a pool?
For solar pool heating, the formula recommended by Dualsun (and used by the MyDualsun platform) is as follows: With: Geographic coefficient = 0.5 if t...
How many Dualsun finned SPRING4 panels are necessary to provide heat to a ground source heat pump ?
We recommend the following sizing ratios depending on the heat pump technology and the lower temperature limit of its evaporator: PAC technology Low ...
Can Dualsun SPRING panels be used before or with solar thermal panels?
No , Dualsun SPRING panels cannot be used in the same hydraulic loop with thermal solar panels. We advise the following requirements: If the setpoi...
How to dimension the expansion tank for a Dualsun installation?
Expansion tank is mandatory with SPRING4 installation. In order to size it properly you can follow the rule : Vexpansion_fluid = Vinstallation x Ce...
How do I choose the best DualSun configuration to heat both my domestic hot water (DHW) and my pool?
There are two possibilities for a solar water heater and pool heating application: solar water heater offer (CESI) + direct pool heating = 2 independe...
What should I prepare for a Dualsun installation in the case of a new construction or a major renovation?
To help you devise your plans or as part of your building permit application, you must take the following into consideration: The physical characteris...
What pre-sizing and pricing ratio could be taken into account for a collective project?
For your projects on a collective building, we let you see the ratio below for a pre-sizing , estimated productivity and pre-cost of your install...
Which software integrates Dualsun Panels in their database ?
The Dualsun panel is present today in the databases of most standard solar sizing software. Below is the list of software that integrates our Dualsun ...
What pre-sizing and pricing ratio could be taken into account for a DUO collective project?
For engineering firms and energy specialists working on collective building projects in the competition phase, we recommend using our ‘quick ratios’ t...