DSH Shipments and Options
The Main Residential DSH package
The typical residential DSH package comes to you in 2 shipments, to suit the construction progress of the home or building erection. In Commercial builds, the prime contractor provides the materials as needed and DSH will verify the design, provide the pump station and controller, as well as any other materials the contractor requires DSH to quote and supply. Commercial Project tend to be fully customized.
In advance of the shipments the pipe design will be completed which will vary with respect to your design and location. The colder the location, or the bigger the family loading, then the more solar panels may be required.
- Includes the special PEX in-ground, and in-slab pipes, shipped in time to be installed in the earthworks and foundation portion of the build.
- Residential: Includes the Stainless steel pump station shipped as a completed ready to connect unit, the solar panels, the piping manifold, the exclusive digital controller, instruction & operating manual on a CD/DVD and the power UPS.
Installation and associated warranty is by the local installer.
The DSH system can be customized in many ways. The basic system comes with heating. To this you can add options such as: hot water, backup heat as either a boiler/wetback, demand heater, or heat pump.
You can also request a nominal solar package. As a rule the system is designed to optimize price and performance. You can request a nominal solar system installed, quite often reducing the number of solar panels by 20%, along with the associated savings. You can at any time add more panels. This is a good choice if the home or building is to be exceptionally insulated and is expected to require much less heating. A Net-Zero home is a good example. You can also request a larger solar system, and/or one combined with Solar PV (Photovoltaic) panels.
OPTION 1: Solar Hot Water integration
This option increases the number of solar panels based on the family and home size & adds in equipment to connect to a solar hot water tank/cylinder. A min. 300L Solar Hot water cylinder is required, DSH can quote or provide specifications.
The double benefit of this is: most solar hot water systems shut down once the hot water cylinder is up to temperature. the DSH system uses the otherwise wasted hot water energy to heat the home or be stored. This will typically provide 75% of your hot water needs when sized correctly.
The heat pump backup option also heats hot water. The operational energy cost compared to an electrical resistance element heating is roughly 60% less as a Hydronic HP is 3 to 4 times as efficient.
OPTION 2: Wetback/boiler Integration
This option adds in additional equipment into the pump station to manage the extraction of heat energy from an auxiliary heat source such as a fireplace with a boiler (wetback), the and the connecting pipes within the Pump station. Wetbacks are to be installed as per normal code requirements.
It is important to have a log boiler with decent energy density, we recommend a minimum rating of 8kW/hr. Heat is automatically directed to hot water, heating and finally storage as required.
OPTION 3: Heat Pump backup Integration
This option allows the integration of a backup pump station or boiler. This is especially beneficial in the early years as the heat core heats up, but is equally significant as it it also backs up the Hot Water.
The DSH controller controls the timing of the backup for hot water and is programmable into the unit by the owner. There are 3 time groups that can be used, most people need only one. As a rule this can be set at a time in advance of showering to ensure enough hot water for showers, typically 2hrs with the 9kW HP.
Heat pump heat is NOT injected into the heat core storage TES system.
OPTION 4: Backup.
The system comes with a UPS capable of operating the system for half an hour or more. Most power issues are resolved in less than 10 minutes. Long term power outages require consideration of other options. 2015 saw the introduction & integration of a drain-back system for the solar panels, meaning the system drains back into a holding tank every time the solar pump stops, preventing solar induced issues. The drain-back system is not backwards compatible with earlier systems (pls ask) as the high performance U-Tube panels do not allow drain-back, however they do have a higher performance coefficient.
Add a Solar PV package to the system. This retrofitable package typically includes one or two solar PV panels, a DC regulated charging system that can automatically carry the electrical load during outages. You can also optionally include micro-inverters, to provide power back to the home or grid when the solar & grid is active.
A deep cycle battery is also an option. Charged by the UPS system, a properly sized battery can extend the operational time by over a day.
There are other options for high risk and extreme weather locations, please ask.
OPTION 5: Integration into commercial or government facilities.
Using the DSH Commercial system, the DSH system is scaled to almost any size and can be integrated to suit a myriad of applications including process pre-heating. Each design is handled on a one by one basis. In these cases the DSH engineering is scaled up to commercial levels of heat generation, and storage. Systems can be scaled up or down from this point.
A large scale system differs from a residential system significantly. The system controller is a commercial product, pumps and pump stations are sized accordingly. This system is customized for each installation.
Builders, Commercial or government interests should contact our office directly. There is a restricted area of this website that can be accessed with a login and password.
To access, contact us for further details: info @ DigitalSolarHeat dot com