Winterised or winterproof?
In common parlance, the two terms are interchangeable. To the layman, they describe a caravan or motorhome you can have a winter holiday in without freezing.
But this is far from the case. Although the two terms sound similar, there are significant differences between them.
Both are based on official standards are can therefore be clearly and unmistakably defined.
Manufacturers use the two terms to refer to grades II and III as defined in the DIN standards EN 1645-1 for caravans and EN 1646-1 for motorhomes, for which there is a precisely prescribed test procedure with four phases:
Winterproof (grade II)
Phase 1 - cooling down:
The test vehicle is cooled down to 0 °C over a period of at least ten hours. For this, all doors and windows are opened to cool down the vehicle completely.
Winterised (grade III)
Phase 1 – cooling down:
The test vehicle is cooled down to -15 °C over a period of at least ten hours. For this, all doors and windows are opened to cool down the vehicle completely.
Phase 2 – heating up:
The aim is to heat up the interior of the test vehicle as quickly as possible from a starting temperature of 0 °C. The centrally located measuring point, one metre above the interior floor in the middle of the living area, must heat up to + 20 °C within two hours, whereby the temperature difference at five other measuring points inside the vehicle must not exceed seven °C.
Phase 2 – heating up:
The aim is to heat up the interior of the test vehicle as quickly as possible from a starting temperature of -15 °C. The centrally located measuring point, one metre above the interior floor in the middle of the living area, must heat up to + 20 °C within two hours, whereby the temperature difference at five other measuring points inside the vehicle must not exceed seven °C.
Phase 3 – stabilisation time:
After a one-hour stabilisation period, during which the test vehicle is kept at an interior temperature of + 20 °C by the heater, the water tanks are filled.
Phase 4 – plumbing test:
After a further hour, all the plumbing and taps are tested to make sure they are clear and functional, i.e. the water inside them hasn’t frozen.
If the test vehicle passes the grade II test procedure, is qualifies as “winterproof”.
If the vehicle passes the grade III test procedure, it qualifies as “winterised”.
Winter camping with HYMER
HYMER subjects its motorhomes, RVs and caravans to a proper cold stress test and puts them through the stringent grade III test procedure. This is performed at Truma in Munich for hot air heating systems and in the ALDE cold chamber in Sweden for hot water heating systems.
Back in 1977, HYMER introduced the still-patented PUAL design which guarantees all HYMER motorhomes and comparable ERIBA caravans a clear quality advantage in terms of (body) stability and insulation. The excellent insulation of the closed-pore PU foam guarantees pleasant temperatures throughout the year and low gas consumption in winter. The thermal insulation is equivalent to a 80 cm-thick solid brick wall in the motorhomes, or 68 cm-thick in the caravans.
The suitability of HYMER motorhomes for year-round use gives it an advantage over many other makes. Clever climate control solutions such as the insulated service installations and tanks, heated dashboard, heated exterior lockers and double-glazed framed windows, or the sophisticated heating and ventilation system and HYMER’s unique bonding technology make every Hymermobil fit for all weathers. That way you can enjoy the snowy winter landscape from your cosy warm interior, no matter how cold it is outside.
The caravan ranges ERIBA Feeling, ERIBA Nova, ERIBA Nova LuxusLine and ERIBA Nova S also feature the PUAL design, which is notable for its outstanding wall and roof insulation, making these model ranges ideal for year-round use. ERIBA caravans excel in numerous tests with short heating-up times and an even temperature distribution throughout the caravan, despite low gas consumption. The ERIBA Exciting, ERIBA Nova and ERIBA Nova S series even boast a hot water heater. Tinted windows with acrylic double glazing also offer ample protection from sunlight and heat loss. For even greater comfort and a home-from-home ambience, special optional winter packages are additionally available ex factory for various ERIBA ranges.
The HYMERCARS have likewise scored top marks in cold chamber tests. Smart ideas and solutions from HYMER Original Parts & Accessories do even more to enhance the pleasure of a winter holiday: interior insulation for the living room windows and cab, a height-adjustable insulating element for the rear section and the perfectly insulated pop-top roof keep the living area cosy and warm, while the practical ski rack, which is simply mounted on the guide rail, is ideal for stowing