Linfield are back in the Europa Conference League having finished second in the Irish Premiership behind Larne for a second successive season.
Their European journey ended at the second qualifying round last season as they lost 8-4 on aggregate against Pogon Szczecin.
They face a trip to Iceland for their tie with Stjarnan, who are six games into their domestic season.
The Blues had a warm weather training camp in Poland and have played a number of friendlies to prepare for the first leg.
Healy conceded that it has been hard to do a thorough analysis of the opposition however and that Stjarnan’s artificial pitch may pose a few problems.
The former Northern Ireland international also confirmed that there are injury worries over “two or three” players.
“We go into the game blind sighted a bit, but we have done the necessary homework and all our work is geared to getting through the first round,” he explained.
“They’re not having the best of seasons, but we know they’re capable of scoring goals, they’re a young, athletic team and it will be a difficult venue for the first leg with the surface they play on.”