pump type and source typical use 35 °c
(e.g. heated screed floor) 45 °c
(e.g. heated screed floor) 55 °c
(e.g. heated timber floor) 65 °c
(e.g. radiator or dhw) 75 °c
(e.g. radiator and dhw) 85 °c
(e.g. radiator and dhw)
pump type and source
typical use
35 ° c -lrb- e.g. heated screed floor -rrb-
45 ° c -lrb- e.g. heated screed floor -rrb-
55 ° c -lrb- e.g. heated timber floor -rrb-
65 ° c -lrb- e.g. radiator or dhw -rrb-
75 ° c -lrb- e.g. radiator and dhw -rrb-
85 ° c -lrb- e.g. radiator and dhw -rrb-
number
number
number
number
number
number
text text number number number number number number
high-efficiency air source heat pump (ashp), air at -20 °c low source temperature 2.2 2 1.9 2 2.4 3
how many pump types have no typical use listed ?
WRB JJ NN NNS VBD-AUX DT JJ NN VBN .
6
Keyword Keyword Keyword Column Keyword Keyword Keyword Keyword Column Keyword Keyword
select count ( c1 ) from w where c2 is null
Keyword Keyword Column Column None Keyword Column Column Keyword None
['agg', 'agg_count'] ['agg', 'agg_count'] c1 c1 ['null', 'null_null'] c2 c2 ['null', 'null_null']