Home' AgTrader : May 2010 Contents Wetbacks guarantee hot water supply
COST effective hot water supply is an issue with
customers concerned about rising power prices and
electricity supply thiswinter according to Taranaki's
Pioneer Manufacturing Limited.
Ever increasing electricity prices and the fact electric hot
water cylinders with ripple control are frequently the firstitems
to be switched off by electricity suppliers when demand
exceeds supplyhas increased demand for wetbacks.
Metro Woodfires Darin Butler said changesin legislation over
emission standards with the National Environmental Standards
(NES), first introduced in 2005, imposed very strict
requirements onefficiencies which affected approved wetbacks
and added confusion to what was allowed.
Woodfire manufacturers are fully supportive of measures to
reduce particulate emissions and have moved quickly to meet
them. What was frustrating is that the NES standard
specifically excluded the energy content from a water heating
device in calculating output and efficiency which made things
difficult in terms of meeting their standard.
Metro and other manufacturers can produce wetbacks
capable of supplying an average familys hot water
requirements in winter, while remaining within the NES
particulate emission limit of 1.5g/kg fuel.
However to achieve this, a wetback needs 3kW-4kW of heat
output which was then not counted in the NES overall heat
efficiency rate of 65%. The NES standard ruling of not
allowing the heat and water efficiency to be combined made
things tough especially as we knew when wetback output and
space heating are combined, efficiency can be in excess of
75%, Mr Butler said.
We were committed to
meet the new standard
and as a result we
undertook some major
redesigns and a lot of
additional testing to fine-
tune things so all our
wetbacks exceeded the
revised standard he said.
standard had a greater
impact on Metro than its
Metro wetbacks are
designed to bethe
primary source of hot
water for the home.
offer water heating as a
secondary function and
supply boosters, which
are only designed to supplement electrically heated hot water.
As is the case with all Metro product's,the Metro wetbacks
have been independently tested in a registered laboratory, so
the rated performance of the Metro wetbacks is actual. So
customers know they are getting what they are paying for
which is not always the case in the wood-fire industry as other
manufacturers prefer to quote estimated outputs.
Metro Wetbacks consists of a heavy cast heatsink with a
copper coil pressed into the heatsink with a specially
formulated fire cement. The result is a wetback that gives
maximum heat transfer from the firebox into the hot water, with
minimal cooling effect onthe fire.
Demand has increased considerably as Home-heating
retailers throughout New Zealand understand Metro wetbacks
performand know we back up what we state with independent
testing, he added.
Timeless practical cookers
CLASSIC cookers have had the pleasure of providing
Rayburn Cookers to customers from Kaitaia to Invercargill.
The cookers have gone into many different situations from
new builds to replacing the tired coal range. Our customers
state that they have been really surprised with the efficiency of
the cookers to heat hot water. They have also been impressed
with the tender tasting roasts.
If you have been watching River Cottage you will have see
them cooking on the Esse range of Cookers. Classic cookers
have joined with the Australasian dealer to provide Kiwis with
the opportunity to purchase Esse as well. The Esse cookers
are the leading brand of cookers for low carbon emissions.
They are in the last stages of testing with Ecan to be clean air
approved. These Cookers are 76% efficient on wood with the
latest technology. A log of wood still looks like a log of wood
4 hours later and on slow burn they will burn up to 17 hours.
All while providing the benefits of Cooking Hot water and
If you can't fit a cooker into your kitchen, Classic cookers
are able to supply you with an alternative. A double or single
sided open fireplace with a 30kw wetback for central heating
or a range of multi fuel boilers which can be placed in a room
or in the garage.
Phone 03 310 6534
Specials for May & June
as not attending National Fieldays®
TAKE $500 OFF
and FREE delivery for all new Cookers
MULTI-FUNCTION RANGES Ph (03) 310 6534 www.classiccookers.co.nz
Beat the chill...
INDUSTRIAL WATER PUMPS
PH 09 526 8717 FAX 09 526 8718
FREEPHONE 0800 627 424 19 INDUSTRY RD, PENROSE, AUCKLAND
ALL PRICES ARE EXCLUSIVE GST
PRICES SUBJECT TO CHANGE WITHOUT
29HP+ START FROM
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New Gensets 2kVA upwards (open type sets and sound proof sets) - Power Plus Products
4D 56 TURBO
2.4L & 3.0L petrol
Fresh Imports. Warranties available.
All vans include on road costs
All vans serviced before being sold &
come with certified mileage certs.
Priced from $11,000
BRUCE GORDON CONTRACTING LT
Phone 0800 105 793 MARTON
Baleage & Hay For Sale
Hay from $5.00 and Baleage from $6.00
(both plus GST) • We deliver
8 MAY 2010
TOLL FREE 0800 55 55 44
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